ITEM NAME:12Teeth Bicycle Freewheel Remover Mountain Bike Freewheel Cassette Remove ToolBX Features: 1. Fit for any shimano or other brand splined bottom bracket 2. Suitable for any 20 teeth splined type bottom bracket -generally the type used for any bike with a suntour, shimano, truvativ chainset 3. The tool can be used with either a 24mm socket, wrench or an adjustable spanner 4. To remove multiple-freewheels and other tower wheels of mountain bikes and road bikes Specifications: Color: Black Material: carbon steel Size: about 28 x 27 x 27 mm Inner diameter: about 19.6 mm Teeth: 12 teeth Shape: 6-pin screw shaped Package includes: 1 x Freewheel Remover Tool Note: Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display..The tool can be used with either a 24mm socket, wrench or an adjustable spanner. Shape: 6-pin screw shaped. Teeth: 12 teeth.