Everything you need for working on standard dive equipment in a compact form. Don't let small gear issues stop you from diving! This pocket-sized multi-tool is equipped with: 1 - A flat screwdriver 2 - An O-ring pick 3 - Inflator Schrader valve tool 4 - Phillips screwdriver 5 - 1/4" hex wrench 6 - 3/16" hex wrench 7 - 5/32" hex wrench 8 - Valve nut slotted screwdriver.