Finding Your Size

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Finding your size is easy!

There are two methods:

The easiest is with this free printable ring sizer (will open as PDF in new window): Ring Sizer PDF

This is an open source printable sizer, please do not use the measuring instructions that come with it as they won't give as accurate results as the instructions I've provided below.

The other method is to use a thin flexible measuring tape, such as the little retractable ones found in sewing kits as shown in the pictures below, to measure your joints and then locate your US ring size using this conversion chart: Ring Size Chart PDF

If you don't have a measuring tape available the best method is to cut a narrow strip of paper- about 1/4"- to wrap around the joint, make an overlapping mark on the strip of paper then flatten it out and measure between the marks.

If your measurements come out between sizes please round up larger.

You can download the adjustment instructions for splints here.

The joints of the hand:

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Purple- where to measure for splints worn on IP joints to find US ring size.

Green- where to measure for splints worn on the hand MCP joints to find US ring size.

Blue- where to measure the IP to MCP gap length for IP/MCP Combination splints only.

Red- where to measure the web of thumb to CMC length for MCP/CMC combination splints only.

*It is important when measuring to find and convert sizes a narrow measuring tape like pictured is used*

For any style IP joint splints:

Swan neck, lateral, mallet support etc. Measure right around the joint(s) you need the splint(s) for, ensuring that the measuring tape is overlapping as shown in the picture. If there's any issues such as nodes or swelling that cause a size variation, or for the larger PIP joints if there is more than a full size difference; measure just above and just below the joint(s), select the larger size from the drop down menu, and provide both sizes in the notes when checking out. If your measurement comes out smaller than the sizing on the chart just select the smallest size from the drop down menu and put your actual measurement/size in the notes for me. This way I can customize the sizing during production for a perfect fit.

Please contact me before purchasing if you are looking for splinting solutions for nodes in the IP joints. Sizing for nodes can be more complicated due to the difference between the joint itself and the surrounding finger, and in some cases severe nodes cannot be splinted because of this size difference.

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Thumb Splints:

For standard thumb MCP splints the only measurement needed is the ring size taken at the IP joint. This is because the IP joint is the largest part of the thumb that the small ring of the splint will need to pass over, and we want to be sure you're able to get your splint on/off comfortably.

Thumb IP/MCP combination splints need the ring size taken at the IP joint and distance between the IP and MCP joints measured with the thumb slightly bent along the blue line, you're essentially measuring the gap that is there when the thumb is bent. This is to ensure that the bar connecting the IP part of the splint to the lower MCP splint ring is short enough that you will be able to bend your thumb normally while wearing your splint.

Thumb MCP/CMC combination splints need the ring size taken at the IP joint and the length of the hand measured from the web of the thumb to just under the CMC joint. If you are having difficulty locating the correct spot please use the chart of the hand joints above following the red line for reference.

Hand MCP Splints:

For any type of splint worn at the MCP joint- buddy splints, triggering splints, hand MCP hypermobility splints, you would measure the finger at the base where a typical band style ring would sit as shown by the green line on the above graphic. If there are issues with swelling it is best to measure when the hands are swollen to ensure the splint will fit properly even when the hands are swollen. If there are issues with the IP joints of the fingers a splint is for- such as nodes- please contact me before ordering if there's more than a ring size of difference between the IP joint and the base of the finger to ensure you're getting a splint that can be worn with nodes. While some of the hand MCP splints are adjustable, most of them are not.

Sized for another brand of splint? No Problem!

If you've previously been sized for another brand of splint or currently have sizes in another brand I can convert them for you. All of the smaller independent splint companies use standardized US ring sizes, but Siris SRS and Oval-8 have their own proprietary sizing system. To order using those sizes please select the numeric size from the drop down menu and leave a note for me letting me know which company the sizes are from. For Siris SRS also add the size for the other side of the splint and for Oval-8 let me know if you're wearing the splint with the larger or smaller size below the joint (there is a little plus sign on the splint indicating the larger end).

Please feel free to contact me if you have any questions about sizing or are unsure of what splint type you need! I'm always happy to help and am generally available via the chat during the day to provide live assistance!

Unsure of your sizes and want some hands on sizing help? Check out the new Size Pak!
Each Size Pak sizing kit contains five bi directional swan neck splints in a graduated set of sizes, a Multisizer sizing tool, a paper measuring tape to find the length measurements, and instructions for sizing your splints with a sizing worksheet to help you keep track as you go.