Features Made of high quality stainless steel, it is of high hardness and low abrasion. Greatly improve strength and stability of screws connection. With certain elasticity and even load, it is resistant to vibration to avoid loosening. Long service life – it can be used repeatedly. Easy and quick to install with only one assembly tool. Made of high quality stainless steel, it is of high hardness and low abrasion. Greatly improve strength and stability of screws connection. With certain elasticity and even load, it is resistant to vibration to avoid loosening. Long service life – it can be used repeatedly. Easy and quick to install with only one assembly tool. Specification: Material: Stainless Steel Color: Silver Package List 1 set Package List