I think this is for a SRAM brake lever to Shimano ispec II shifter mount but could be wrong. You'll know if its what you need I'm sure. Brand new never fitted.
Rear Derailleur 3 x 9 Speed for Shimano/Sram, Left Right Brake Lever Shift Sets with Gear Indicator and Brake Cables for MTB/Road Bike/Mountain Bike
Sram Avid Left Brake Lever Speed Dial Mag All Brake Type Adjustable Grey 22.2
SRAM Rival 1 Single Brake Lever Mechanical - Left Rim Brake Cable Actuated Road
Keenso Brake Lever Sleeve Grip, 5 Colors 2Pcs Silicone Anti-Slip Bike Brake Lever Grip Cover Brake Handle Lever Sleeve Waterproof Brake Lever Protector Cycling Accessory(Black)
SRAM Rival AXS HRD Shift Brake Lever Hydraulic Disc Flat Mount ED-RIV-E1
SRAM Rival eTap AXS Right / Front Shift-Brake Lever | 12-Speed Hydraulic Disc