FregocS Bicycle Chainwheel Chainring Black Bolt Nut Convenient Set of

• Fixing bolts and nuts (black color) for bicycle chainwheels (chainrings). • Contains 10 pieces for single (bolt length 6mm, nut length 5mm). • Since it comes in a convenient set of 10 pieces, it is also recommended for those who own multiple units and for businesses.Also, it's a good idea to have a spare. • Made of high strength and durable steel.