do these work on the thumb?

It depends on how long your thumb is I have really short fat fingers and had to return these and make my own splint

how do I know what size to get, I see no guidance for this.

There is a pdf file link in the full product description. It asks you to print out a sizing band at default printer settings. However, using a new Brother printer, it printed out 1/16 of an inch too small, and I had to bump it up to 103% to make it match the 3½" marker on the printout.

Are these very rigid or semi-flexible? Could I type while wearing it?

They are Rigid n strong. I use one on my pinky n one on my thumb and I type all day on & off with these. I have RA and when my fingers are swollen n stuff, to bend them gives me extreme pain !! So I bought these splints to prevent my fingers from bending you can take them off, move them around. Also another note: I have bigger sizes, there’s one where it comes w/ 32 sizes on a big round keychain. When my fingers r swollen or if ur finger is Broke, you will go they several different sizes. So getting the 3 pack in ur size is perfectly fine, but you may need a few in the sizes before & after I hope this helps !! Good Luck !!

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EZ Finger Splint Trio 3 Pack (10,11,12)

Product ID: 401566862

Details

Age Range (Description)
Adult
Brand
Brace On
Colour
beige
Size
10 11 12
Specific Uses For Product
Turning Finger

💧Waterproof for all-day wear

🔒Secure Hook & Loop closure

⚖️Lightweight at just 1 oz

Description

🖐️ Heal smart, work sharp — the splint that keeps you in the game.

CUSTOMIZABLE FIT - Available in sizes 10, 11, and 12 with easy sizing kits to ensure your perfect match.
DISCREET DURABLE - Beige plastic blend offers a subtle look that’s built to last through daily wear and tear.
SEAMLESS ALL DAY COMFORT - Low profile design lets you move naturally without bulk or distraction.
WORKDAY WARRIOR APPROVED - Ultra-lightweight and waterproof—perfect for keyboard warriors and busy professionals.
PRECISION HEALING SUPPORT - Targets arthritis, trigger finger, and crooked fingers with a snug, effective fit.

The EZ Finger Splint Trio by BraceOn offers a lightweight, waterproof, and low-profile solution designed for adults managing finger injuries or conditions like arthritis and trigger finger. With sizes 10, 11, and 12 included, these durable plastic splints provide comfortable, all-day support without hindering daily activities, making them ideal for professionals who need both healing and functionality.

Specifications

ASIN	B07S6Z733T
ASIN	B07S6Z733T
Age Range Description	Adult
Best Sellers Rank	#270,772 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #359 in Finger Splints
Brand Name	Brace On
Closure Type	Hook & Loop
Colour	beige
Customer Reviews	4.2 4.2 out of 5 stars (613)
Date First Available	11 June 2019
Item Dimensions	12.7 x 7.6 x 2.5 Centimeters
Item Dimensions LxWxH	12.7 x 7.6 x 2.5 Centimeters
Item Weight	1 Ounces
Item Weight	28.3 g
Manufacturer	Brace On
Manufacturer	Brace On
Material Type	Plastic
Net Quantity	1.00 Count
Number of Items	3
Product Care Instructions	Hand Wash Only
Product Dimensions	12.7 x 7.62 x 2.54 cm; 28.35 g
Size	10,11,12
Special Features	Lightweight
Specific Uses For Product	Turning,Arthritis,Crooked,Trigger Finger
UPC	726481279833
Unit Count	1.00 Count

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How is product pricing calculated?+

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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