6 Allen key sizes: 5/32", 9/64", 1/8", 3/16", 4mm, 5mm. 3 Socket Wrench sizes: 1/4", 5/16", 7mm and each includes a PH#1 magnetized screwdriver for truss rod covers. Special designed Spoke Wheel tool. 3/8" Flat Head Screwdriver Blade bit for certain truss rods at the heel. Compact, organized and strong aluminum case 3" x 5.5" x 1.4".