Piston Ring Service Tool Set Engine Ratchet Cleaning Expander Compressor Features: part is manufactured to factory specifications. Made of premium alloy steel material, anti-rust, anti-corrosion, very durable. Three piston compressors: 55-125mm * 75mmL, 90-175mm * 90mmL, & 90-175mm * 100mmL sizes. Including one 50-130mm capacity ring groove cleaner, one 50-100mm capacity ring expander. Three offset Phillips / slotted screwdrivers: 1/16in To 3/16in, 2 To 2.5mm & 1.2 To 5.5mm sizes. All these tools are packed in a case for easy storage and transportation. Portable with a plastic box, heat treated, very convenient and safe. Specification: Condition: Material: Alloy steel Color: As picture shown Plastic Box Color: Blue Size: As picture shown Package Weight: Approx. 2815g / 99.3oz Package Included: Three Piston Compressors 1 * Height: 3in (75mm), capacity 53-125mm 1 * Height: 3-1/2in (90mm), capacity 90-175mm 1 * Height: 4in (100mm), capacity 90-175mm     A Ring Expander, Ring Groove Cleaner & Offset Phillips/Slotted Screwdrivers Three Offset Phillips/Slotted Screwdrivers: 1/16in To 3/16in, 2 To 2.5mm & 1.2 To 5.5mm Sizes Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.