DURABLE -- Durable solid brass grommets rust proof for years. WITH STORAGE BOX -- Easy to store and use. Grommets and setting tools are placed in a clear storage box with baffle to separate these components, quick and easy to find the tools you need. COST-EFFECTIVE -- No need to buy another tool. Grommet kit set equipped with Six - 3/8" Grommets, Six - 1/2" Grommets, Universal Punch Body with Two Punch Heads (3/8" 1/2"), Two-Sided Anvil (one side for 3/8'' grommet, another side for 1/2''), Two Hole Punches and hardwood backer block. VERSATILE USE -- Outdoor and indoor for repairing canvas, tarps, tents, awnings, canopies, luggage, upholstery, curtains and pool or boat covers. PROFESSIONAL CUSTOMER SERVICE TEAM -- Provide you with the most professional guidance and best service of Sparta tool.