The Infinisplint™ helps to limit arthritis pain at the MCP knuckle joint. Pain at this joint junction can be caused by injury to the area, or commonly repetitive stress injury (RSI).


  • MCP knuckle arthritis or pain
  • RSI and pain from computer mouse use 
  • Stress injury or pain from a repetitive hobby (i.e. knitting or crochet)

Infinisplint™ Knuckle Arthritis

$25.00 Regular Price
$16.25Sale Price
  • Please find the size around both affected fingers. We only accept measurements taken with our Sizing Kit,  which we provide for free with any order, if you don't know your sizes. Simply type "not sure"  in the box above before adding the product to your cart, and we'll get a Sizing Kit shipped. Instructions on how and where to measure will be included. Once you have your sizes, simply contact us with your name, order number, and sizing information, and we'll get your custom splints shipped!

    Please Note: Orders submitted with any other sizing method, or if we are unsure about your sizing, will automatically receive a free Sizing Kit, and your order will be shipped once additional sizing has been submitted. This simply helps to limit return shipping costs for our valued customers and helps ensure your splint is the right fit the first time around!

    If you already have our sizing tool:
    Please find the size above and below the affected joint for this splint. TIP: the sizer should be snug but not tight, crimp the finger or thumb by making a loose fist to find your comfort size. 

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