【Material】—The screw and snap fastener tool is made of high quality marine grade stainless steel, which can be used for a long time and is not easy to rust. Suitable for different environments. The caps are made of copper. 【Canvas Snap Kit】—The metal snap screw set includes 50pcs screws, 50pcs base and 50pcs cap with 2pcs adjustment tool and comes with a transparent plastic box, easy to store and find 【Convenient and practical】 - These canvas binding sets are very diverse and nicely sorted in a transparent plastic box. So you can quickly find the tools you need and have the right button at hand for every sewing project 【Firm hold】 - For mounting on hard surfaces, studs for tightening on screws or canvas studs are available. Sturdy snap fasteners provide a firm hold that will stay secure for years to come. 【Wide Applications】 - The canvas fastener screw is suitable for repairing or replacing awnings, tents, tarpaulins, caravans, curtains, RVs, furniture, cots, boats, motorcycles or