Check the listing for details. * (Set of 2) Ring Finger Flex * TRU Ball Release Extension Attachment 3D. Condition: New without tags. Listed at 18.00 USD. *** Release in picture is NOT included. Only shown as an example for fitment *** Includes: 1) Set of 2 Ring finger extensions - mix and match options. Please see below for options on texture, angle and color. Ring Finger Flex Extension The ring finger extension will fit truball releases that has the flex finger attachment option. Releases from truball are often named with FLEX in its product such as: Blade Pro Flex Fulkrum Flex Abyss Flex HBC Flex Goat But it will also fit the GOAT which doesn't have flex in its name. As long as your truball release has a detachable ring finger attachment then it can use this extension. The 5th picture shows how it would connect. I made these non-adjustable as I wanted the extension to always have a solid connection against he release body. For this reason the hole is made perfectly to attach it at the zero setting. Texture Options The ring finger extension you can choose between a smooth finish or a knurled finish on the face of the extension for the 3 finger. 2 finger attachments only come in smooth. Angle Options There are 3 options for the flex angles: Low, a medium and high. Using the hash marks on the underside of the stock extension these are the conversions. Low - zero setting Medium - hash mark 5 High - hash mark 10 Color Options Color options are available. If you prefer other colors, please message me and I can send you pics of the exact color shade I have if I have it.