Replacement bleed fitting caps fit for most bike hydraulic disc brake calipers on the market. Compatible with Shimano, compatible with SRAM, compatible with Hayes, compatible with Tektro etc. Brake bleed rubber caps are made of rubber material, which is durable and durable. Easy to install and reliable in performance. It does not require complicated tools, can be installed quickly and easily, and can directly replace old or damaged tools. Brake caliper bleed nipple caps for hydraulic disc brakes. It can protect the bleed screws and make dirt and dust out of the vent screws. Package contains 30pcs brake bleed dust caps, including red, black, fluorescent green, 10pcs for each color. Part Type Brake caliper bleed nipple caps Colour Red, .