Check the listing for details. AUTOMOTIVE PETROL ENGINE COMPRESSION TESTER KIT GAUGE DUAL SCALE COMPRESSION TES. Condition: New. Listed at 20.99 USD. Maxsales_2009 AUTOMOTIVE ENGINE COMPRESSION TESTER KIT Gauge With Dual Scale Includes Two Adaptors To Test More Vehicles Checks Valves And Ring Wear, Excessive Carbon And Late Timing With Blow Molded Storage Case Blister Packed Suitable For Use With 16mm & 21mm Spark Plugs 2 1/2 Inch / 64mm Diameter Gauge Dual Scale 0 300Lbs And 0 21KgsShipping Information:All package will be inspected before shipping. Protective packing material will be added in your package if we believe item can be damaged easily in transit. Please allow 1-2 business days handling time for payment processing and shipping. Tracking numbers will be available in 24 hours except weekends and holidays. For faster service, please update your correct shipping address before sending payment. Please contact us if you have any questions on shipping. Terms of Sale:100% Satisfaction Guaranteed or your money back. All exchange items must be in 100% brand new condition. Buyers are responsible for return shipping. Items must be returned by the same method use for delivery. All returns will subject to a 10% restocking fee based on there invoice price