Cassette spacers, bottom bracket spacers and hardware for HollowtechII, GXP, BB30/PF30. Features: Comprehensive shop kit for bottom bracket and cassette/freewheel spacing needs 120 piece. kit in durable plastic storage box Includes: (20) 1.0mm FW Spacers (10) 1.5mm FW Spacers (10) 2.0mm FW Spacers (10) NCS-4.5mm Cassette Spacers (10) SHIM-.3mm Spacers (10) SHIM-.5mm Spacers (8) 0.5mm 24mm ID Spacers (8) 1.0mm 24mm ID Spacers (8) 2.5mm 24mm ID Spacers (4) BB30-CLIPs (4) BB30/PF30 Wave Washers (4) GXP Wave Washers (4) .7mm Bottom Bracket Spacers (4) 1.8mm Bottom Bracket Spacers (9) 2.5mm Bottom Bracket Spacers (8) 0.5mm 30mm ID Spacers (8) 1.0mm 30mm ID Spacers