EZ Mountain Bike Hydraulic Disc Brake DOT Mineral Oil Bleed Kit for AVID Formula Hanyes Echo Shimano Tekro HS33 Magura Nutt (Normally Combination) 9pcs Adapters Works for Shimano, Magura, Tektro, Hope, Avid, Formula, Hayes, Fox, DTSWISS, Rockshox, Bengal, Quad, Echo,Giant Brake System and Fork Compatible with Most Brake Systems In the Market, not be for AVID X0, and Shimano deore xt. Compatible with Both Mineral/ DOT Fluid