Deluxe Snap, Grommet & Rivet Repair Kit - over 400 Hardware Pieces & Tools - Boat Covers, Tarps, Tents Save time & money - do your own tarp, cover and canvas repairs with professional results Heavy-duty crimping tool with interchangeable heads for setting, center punch, hole cutter Includes 400+ hardware pieces; brass grommets, steel & aluminum rivets, complete nickel-plated snaps Pieces stay organized in clear-view case that fits in drawer; extra supplies available separately Extend life of expensive covers with instant, in-the-field repairs