I have tmj issues with my jaw, and i'm wondering if the chin strap would aggravate my jaw. anyone have experience with this?

Not if you don't pull it too tight. I experience similar where I clench my jaw and is largely uncomfortable most of the time. As a result, my neck is straightening. This contraption helps because the result is mimicking whiplash. So, in my opinion/my mentor's opinion yes this should help whatever you are experiencing without aggravating your jaw. It's not meant prolonged usage either, nothing over 13 minutes or something. Just don't pull the chinstrap too tight and read the instructions. The contraption does bring relief. *I'm a licensed massage therapist, and my mentor is a LMT + owner of a massage school.*

Is the air release valve the same as a safety valve which prevents over-inflation?

No, you have to determine for yourself if and when you have over-inflated and then release pressure as needed. The release valve is on the pump so it is easy to adjust the pressure. It is best to initially inflate the pump slowly to allow your body to adjust and "inform" you if you are overdoing it.

Is there a safety valve on this one?

The air release valve is just below the bulb used to inflate

Where is this made in?

I suppose in China. I used it and posture neck device is limited. Does not work so good...

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Posture Neck Exercising Cervical Spine Hydrator Pump Relief for Stiffness, Relieves Neck Pain

Product ID: 89883776

Details

Use for
Neck
Power Source
Battery
Item Weight
1.14 Pounds
Brand
AllSett Health
Color
Blue

🌀Multi-vectored force hydrates discs

💨Dual inflation for gradual decompression

📏Improves neck flexibility & posture

NT$5098

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Description

🦾 Elevate your neck game—stretch, hydrate, and stand tall with every pump!

TRUSTED PROVEN - Ranked #41 in Traction Equipment with thousands of users experiencing noticeable pain reduction and improved posture—don’t miss out!
DUAL ACTION DESIGN - Inflation mechanism not only stretches your neck but also engages your core, strengthening your lower back for holistic spinal health.
POSTURE PERFECTING POWER - Corrects forward head and upper back hump posture by restoring the natural neck curve, so you stand taller and feel confident.
EFFORTLESS AT HOME RELIEF - Just minutes daily in the comfort of your home unlocks real neck pain relief and increased range of motion without costly therapy visits.
DEEP DISC HYDRATION DECOMPRESSION - Uniquely angled air cells deliver multi-directional stretch to rehydrate and decompress cervical discs, reversing stiffness and fatigue.

This Posture Neck Exerciser is a compact, dual-inflation device designed to decompress and hydrate cervical discs, correct forward head and hump posture, and relieve neck pain and stiffness. Lightweight and easy to use at home, it improves flexibility and range of motion while also engaging core muscles for comprehensive spinal support.

Specifications

ASIN	B07GDZQ9SR
Best Sellers Rank	#57,667 in Health & Household ( See Top 100 in Health & Household ) #41 in Traction Equipment
Customer Reviews	3.9 3.9 out of 5 stars (1,186)
Date First Available	August 13, 2018
Item model number	BD3523
Manufacturer	All Sett Health
Product Dimensions	14.5 x 13.5 x 4.5 inches; 1.14 pounds

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

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NT$5098

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Taiwan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

2 months ago

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Very reliable shop with genuine products. Will definitely buy again!

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