| General's Professional Grommet Kits are a great choice when you need to repair a tarp, tent or pool cover. They can also be used to add additional grommets to a canvas or awning. The matched anvil and mandrel set are made from hardened steel to ensure the grommet pieces are securely and permanently joined. We offer three kits sizes (1/4", 1/2 and 3/8") with grommets. Additional grommets are also available for purchase.