Convenient Installation Tools The included drilling tool and anvil can ensure quick and easy installation even if you are a novice. The convex surface of the lid device is 201 and the convex surface of the column device is 831. Real stainless steel covers, sockets, studs and posts: they will not rust or corrode even in salt water, durable and practical. Useful pin kit, high quality and sturdy studs. Application: Both sides of the rivet have a cover that makes it look good; These rivets can be used for DIY crafts or clothing, such as shoes, hats, jeans, windbreakers, down jackets, jackets, curtains, etc., Weight: 0.28219169536 Pounds, Manufacturer: Rtxbvg