Made of Iron, those grommets are rust-free. Very easy and convenient to use as per your needs.
400 sets of multi-color grommets with 1 punch, 1 base, 1 install tool in a clear storage box which separated cube added for you to make it easy and convenient to store and organize those grommets.
You can poke a hole using hole punch and base setter on to fabric. Fix the button/eyelet/studs into hole, place hand tool on it and hammer it with little pressure.
Grommet kit is suitable for bags, shoes, clothing, shoelaces, DIY crafts projects, canvas, leather crafts, car hoods, boat covers, straps,tents and other cloth made items.