ITEM NAME:Bicycle Cycle Cassette Flywheel Freewheel Locking Remover Bike Repair Tool Features: Durable Flywheel Disassemble and Install tool, with 12 teeth, can used to disassemble bike flywheel. Material: stainless steel Color: Black Internal diameter: 20mm / 0.79inch Package Includeds: 1x Bicycle Flywheel Remover Tool SKU: DMO0008843154000625.1x Bicycle Flywheel Remover Tool. Durable Flywheel Disassemble and Install tool, with 12 teeth, can used to disassemble bike flywheel. SKU: DMO0008843154000625.