Specification Brand : Bonvoisin BulletPoint1 : [Ultra-thin & Portable] - This hydraulic cylinder is portable, small in size, but strong in load-bearing capacity, which is especially suitable for lifting and supporting work in narrow spaces. BulletPoint2 : [Note] - After the pressure is relieved, the piston of the jack ram CANNOT retract by itself! You must use gravity to press the jack to retract, which is not a quality problem. BulletPoint3 : [Come with Pump] - The porta power ram come with a CP-180 hydraulic hand pump. BulletPoint4 : [Wide Applications] - This hydraulic jack can be widely used in power, chemical, steel, bridges, shipbuilding, machinery and other industries! However, it does NOT apply to cars. BulletPoint5 : Easy tighten thumb screw Color : Metallic CompatibleWithVehicleType : Car ExternallyAssignedProductIdentifier1 : 698253849103 ExternallyAssignedProductIdentifier2 : 0698253849103 ItemName : Bonvoisin 10T Hydraulic Cylinder Jack Porta Power Mini Hydraulic Ram Multi-Acting with CP-180 Hydraulic Hand Pump for Machinery Shipbuilding (Cannot Retract Automatically) ItemPackageDimensions_Height : 38.7858 centimeters ItemPackageDimensions_Length : 20.0914 centimeters ItemPackageDimensions_Width : 24.4094 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hydraulic-lifting-cylinders LoadCapacity : 22046.2 pounds Manufacturer : Bonvoisin Material : metal MinimumHeight : 145 millimeters ModelNumber : DERNORD-503 PartNumber : SUS-22 ProductDescription : NOTE: In order to operate correctly, all cylinders need to be connected to a solid lifting surface. The use of cylinders on sandy, clay or loose surfaces can lead to cylinder damage.