What Size Oval-8 Finger Splint Do I Need?

You’ve done your research and/or you’ve talked to  your health care provider about your injured, arthritic or hypermobile finger. You’ve decided that an Oval 8 splint is the right solution for your finger problem. Now what? For your Oval-8 splint to be effective, it needs to be a good fit– snug enough to provide control, but not so tight it is uncomfortable. So how do you answer the question – what size Oval-8 Finger Splint do I need?

There are 4 important things to know about Oval-8 splints to help you choose your size

  • Oval-8 sizes are quite precise and the difference between sizes is rather small
  • Each splint has the Oval-8 name followed by the size on the bottom of the band (Hold the band up to a light to make it easier to see the size)
  • Each Oval-8 splint fits a bit tighter or looser depending on which end slips on the finger first (The end with the Plus+ sign is 1/2 size larger and will fit looser when put on the finger first. It is important that you try the splints on both ways when trying to find the best fit.)  

Oval-8 finger splint for arthritis


  • When choosing the size that fits best, you must make certain you are wearing it as recommended for your problem

If you are treating a Mallet Finger and want to hold the end joint straight, the band must be on the top of the joint

oval-8 finger splint for mallet finger
  Mallet Finger

If you are treating what is commonly called a Swan Neck Deformity, where the middle knuckle bends backwards, the band will fit on the bottom of the middle knuckle


oval-8 finger splint for swan nek deformity
  Swan Neck Deformity

If you are wearing it to stop Trigger Finger, fit the splint so the band is on the top of the finger and the oval section in your palm

oval-8 finger splint for trigger finger
 Trigger Finger


If you are wearing it to stop Trigger Thumb, fit the splint so the band is on the top of the thumb and the oval section in your palm

oval-8 finger splint for trigger thumb
 Trigger Thumb

To determine what size Oval-8 to choose there are a few different sizing methods you can use:


Use a flexible measuring tape to measure around the joint of the affected finger. Oval-8 Graduated Sets make choosing the correct size easier by giving you the extra splints needed for swelling and other changes in your finger size.

oval-8 finger splints sizing chart



The Oval-8 Sizing Guide is a paper measuring guide you print and cut out to measure for the Oval-8 sizes most likely to fit. Watch our step-by-step video “How to Choose the Correct Size Oval-8 Finger Splint” for additional help on how to use the Sizing Guide.

For more tips on choosing the Oval-8:

Watch This Video


The Oval-8 Sizing Set is a complete set, which contains one splint of each size, 2 to 15. The Sizing Set lets you try several sizes as needed to get the right fit.

Oval-8 Sizing Set


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oval-8 finger splints for arthritis mallet finger trigger finger
Oval-8 Finger Splints








Our blogs are presented for informational purposes only and are not to be considered medical advice. Because your condition is unique to you, it is recommended that you consult with your health care provider before attempting any medical or therapeutic intervention. We are happy to answer questions or comments pertaining to any products mentioned in our blogs, however, we cannot provide a diagnosis or medical advice.


2 comments on “What Size Oval-8 Finger Splint Do I Need?

  1. I would like to order some oval 8 as I have three fingers that have been acting up with trigger finger, how do I know my size, do we have to purchase the sizer? I live in Fort worth, tx

    1. Hi Lori,

      Thank you for your interest in the 3pp Oval-8 finger splints. An Oval-8 finger splint can help treat your trigger finger. Please visit this link http://www.ohmyarthritis.com/arthritis.aspx#Trigger%20Finger for more information on this condition.

      A precise fit is the key to effective treatment with Oval-8 Finger Splints. Sizing information is available on the printable Sizing Guide and the Oval-8 Splint Sizing Video may also be viewed.

      Printable Sizing Guide: http://www.ohmyarthritis.com/img/product/description/oval8sizingguideapril2013.pdf
      Sizing Videos: http://www.ohmyarthritis.com/videos.aspx

      The Oval-8 Sizing Guide will help you choose the size splint most likely to fit your finger. Since even slight swelling or temperature changes can affect finger size, choosing only one size splint does not guarantee that size will be 100% accurate. Choosing an Oval-8 Graduated Set of 3 sizes is recommended for greater accuracy in sizing.

      Thank you and we hope your fingers feel better soon!

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