"Product information: Color: silver Material: carbon steel Scope of delivery: 1x crankset, 1x red wrench Description The Item is a professional and practical bicycle repair tool kit and is mainly made of high quality carbide material for durable use. The crank puller is used to remove square crank arms, all you need is either an 8 mm wrench or just an adjustable wrench. - Color: as shown in the pictures. - Material: durable carbide and plastic. - 100% brand new and high quality - Contains a crank puller, a bottom bracket remover - Suitable for any 20 teeth toothed type bottom bracket - usually the type for any bike with sunglasses - Fit for each Brand type bottom bracket. - Small and handy for every bike owner in the toolbox to hold. - Easy to use, suitable for beginners. "