The Entity DBB030 is a premium disc brake bleed kit for most types of disc brakes on the market. Check online for each disc brake manufacturer for their instructions on how to bleed brakes properly. Made of durable materials that will tolerate the oils, fluids and solvents. Has all the parts you need, including 4 syringes. Comes in a handy carry case. Can be used on Shimano, Avid, Hope, Giant, Hayes, Magura and Formula brakes.