●★EASY TO USE: The domed top nut is easy to tighten by hand, and has a decorative finish ●★HIGH QUALITY MATERIALS: Made of brass material, these acorn nuts are sturdy and durable ●★Zipper: Brass bag nut is a kind of zipper named because of its shape. Nuts with domed top to prevent contact with external screws ●★ Scope of application: It can be used as a high strength fastener for machinery, furniture, vehicles, etc., and is mainly used to secure tires and axles in automobiles, tricycles, electric vehicles ●★ SATISFACTION GUARANTEE: We care about every customer. If this product does not meet or exceed your expectations, please return it for a 100% refund without questions