--- product_id: 105968442 title: "74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red" brand: "rockdig" price: "NT$1036" currency: TWD in_stock: true category: "Rockdig" url: https://www.desertcart.tw/products/105968442-74pcs-1-3-4-1-2-3-8-inch-3 store_origin: TW region: Taiwan --- # 3:1 shrink ratio for tight, secure seals 74-piece assorted sizes for versatile applications Double-wall adhesive lining for ultimate protection 74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red **Brand:** rockdig **Price:** NT$1036 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Seal it tight, protect it right β€” the pro’s choice for flawless wiring! ## Quick Answers - **What is this?** 74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red by rockdig - **How much does it cost?** NT$1036 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/105968442-74pcs-1-3-4-1-2-3-8-inch-3) ## Best For - rockdig enthusiasts ## Why This Product - Trusted rockdig brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **All-in-One Kit:** 74 pre-cut tubes in black & red cover wire gauges from 12 to 4/0 AWG - β€’ **DIY-Ready & Fast:** Heat shrinks in seconds with any heat sourceβ€”no fuss, just pro results - β€’ **Dual-Layer Defense:** Adhesive-lined double walls guard against water, abrasion, and vibration - β€’ **Shrink to Strength:** 3:1 shrink ratio ensures a snug, corrosion-proof fit every time - β€’ **Marine-Grade Durability:** Industrial polyolefin material built to withstand harsh environments ## Overview The RockDIG 74PCS Heat Shrink Tubing Kit features a powerful 3:1 shrink ratio and double-wall adhesive lining, delivering a water-resistant, abrasion-proof seal ideal for industrial, marine, and automotive wiring. With 74 assorted pre-cut tubes in black and red, it covers a wide range of wire gauges (12 to 4/0 AWG), making it a must-have for professionals and DIYers seeking fast, reliable electrical insulation and protection. ## Description RockDIG 74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red: desertcart.com: Industrial & Scientific ## Features - 3:1 SHRINK RATIO - It shrinks a lot, recovers to 1/3 of its original diameter, put it on crimped and uncrimped connections, after heat shrink, it makes a strong and tight seal. Prevents failure due to corrosion, vibration, abrasion and strain - STURDY DUAL WALL ADHESIVE LINED CONSTRUCTION - The outer wall shrinks, providing strength, rigidity and abrasion resistance, while the inner wall provides a water-resistant seal to keep out contaminants and water. The glue inside it is stiff, strong and flexible, makes good bond to wires, and makes the wiring look clearn - WIDE APPLICATIONS: Must have for DIY and Repair. The shrink tubes is mostly used for soldering and covering connections on amplifier, audio, battery, radio in car, truck, boat, jeep, soloar pannel and etc, used to seal butt connectors for in-line splices, insulate tool handles to reduce electric shock, repair welding cables and insulate electrical terminals stingers and copper lugs - EASY TO USE - These heat shrink tubings are easy to use and can be shrunk in seconds. Simply cover the bare wire section with the heat shrink tubing and heat with a soldering iron or torch or other heat source - PACKAGE INCLUDES - 74PCS 1 3/4 1/2 3/8 Inch large size black pre-cut red 3:1 Heat Shrink Tubings, wire awg gauge coverage(it is approximate due to the wide variance of wire thicknesses): 12 ga to 4/0 ga ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MW27JNZ | | Best Sellers Rank | #25,354 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #89 in Industrial Heat-Shrink Tubing | | Brand Name | ROCKDIG | | Color | 74pcs(Ξ¦1~3/8"), Black&Red | | Customer Reviews | 4.7 4.7 out of 5 stars (1,782) | | Item Dimensions L x W | 3"L x 0.43"W | | Item Length | 3 inches | | Item Type Name | heat shrink tubing | | Manufacturer | RockDIG | | Material Type | Polyolefin | | Nominal Wall Thickness | 1.3 month | | Outside Diameter | 1 inches | | UPC | 682228305299 | | Unit Count | 1 Count | ## Product Details - **Brand:** ROCKDIG - **Color:** 74pcs(Ξ¦1~3/8"), Black&Red - **Item Length:** 3 inches - **Manufacturer:** RockDIG - **Material:** Polyolefin - **Nominal Wall Thickness:** 1.3 month - **Number of Packs:** 1 - **Outside Diameter:** 1 inches - **Product Dimensions:** 3"L x 0.43"W - **UPC:** 682228305299 ## Images ![74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red - Image 1](https://m.media-amazon.com/images/I/41x5AJt0PVL.jpg) ![74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red - Image 2](https://m.media-amazon.com/images/I/41oko8EIgqL.jpg) ![74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red - Image 3](https://m.media-amazon.com/images/I/41H8wVcW4TL.jpg) ![74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red - Image 4](https://m.media-amazon.com/images/I/51R+adPaT6L.jpg) ![74PCS 1 3/4 1/2 3/8 Inch 3:1 Heat Shrink Tubing Assortment Kit Double-Wall Adhesive Lined Marine Grade Industrial Heat-Shrink Wrap Wire Tubing Black Red - Image 5](https://m.media-amazon.com/images/I/41mx4nuVeAL.jpg) ## Available Options This product comes in different **Color, Size, Number Of Items** options. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tw/products/105968442-74pcs-1-3-4-1-2-3-8-inch-3](https://www.desertcart.tw/products/105968442-74pcs-1-3-4-1-2-3-8-inch-3) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-09-07*