Skull Caps are beautifully designed little skull shaped dust caps to keep the dirt out of your bicycle valves! They come packaged in a cool gift box to make them the perfect gift for any keen cyclist… Skull Caps are a great way to personalise your bike and stand out from your mates. Features Material: ABS Plastic Protects your bikes pipes! Dims 2.5 x 2 x 2 cm - Min Order: 6 units