1Antilost design, the spring hook is very firm, and there will be no loosening or falling off without using external force. 2Strong pressing force, the elasticity is not decayed after repeated use, and the service life is long. 3Precise processing, every part has been finely chamfered, no barbs, will not injure the hands. 4The side curvature conforms to the ergonomic design, pressing effortlessly, to meet your needs. 5CNC cutting technology, smooth hand feeling, integrated cutting forming, reflecting the beauty of streamline.