Piston Ring Compressor with Ratchet Key. Package Contents: 1x Piston Ring Tension Band: Height: 3", Capacity 53 - 125mm 1x Piston Ring Tension Band: Height: 3", Capacity 90 - 175mm 1x Piston Ring Tension Band: Height: 4", Capacity 90 - 175mm 1x Piston Ring Pliers 50 - 100mm 1x Piston Ring Groove Cleaner: fits 2" - 5" (51-127mm) 1x Cleaning Blade Size: 1/16" - 3/16" 1x Cleaning Blade Size: 2.0mm - 4.5mm & 1/4" 1x Cleaning Blade Size: 1.2mm - 5.5mm Offset screwdriver: Phillips & Slotted Storage Case