Very handy 8 piece folding metric hex key set in a tough composite handle. Very handy for maintaining Xootr kick scooters. This tool can undo and tighten all hex bolts on Xootr kick scooters including the front and rear wheels; the kickboard; the front and rear brakes; the handle cap and steering column. Includes the following Allen key sizes: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm