ITEM NAME:Bicycle Flywheel Cassette Remover Mountain Bike Socket Wrench Repair ToolSA3C Specifications: - Item: Bicycle Cassette Sprocket Extractor - Spec: 12 teeth - Production: Integral Forming , Tempered - Furnishing: Nickel plated, both inner & outer surface - Tool Applicable: 19/24 Flat & 1/2in square spanner (Spanner not included in package) - Size: 63*24mm Package Includes: 1 * PC Tool.Item: Bicycle Cassette Sprocket Extractor. 1 PC Tool. - Size: 63 24mm.