`- Service parts for SRAM hydraulic disc brake calipers\n- Caliper hardware kits do not include banjo fitting (use tubing kit or separate banjo/banjo-nut depending on application)\n- Most kits are for (1) caliper (except where noted)\n- Guide caliper piston kits include: (2) 16mm and (2) 14mm caliper pistons, seals, and o-rings \n- DB5 caliper piston kits include: (2) 21mm caliper pistons, seals, and o-rings