Description: A valve spring compressor is specially designed to help remove and compress the valve spring conveniently and safely. Our professional valve spring compressor is an ideal tool for use on most car, small truck, and motorcycle engines. There are 5 different sized adapters for different spring diameters on most cylinder heads. It allows you to properly adjust the valve spring and makes it easier to compress. Don't miss it! Features: The professional valve spring compressor tool allows you to remove and compress valve springs on most cylinder heads more convenient. Comes with 5 adapters for different spring diameters, as well as to properly adjust the valve spring for easy and safe compression. Ideal for use on most car, small van and motorcycle engines. Made of solid steel, sturdy construction, strong and durable. 10 full pieces are well packed and combined in a plastic box for convenient storage and carrying. Features: Material: Steel. Color: As picture shown. Each adapter length: 4.7cm/1.87" C-Clamp Size: 16 x 19 cm. Extension Screw Dimensions: 11.3 cm, 11.3 cm, 7 cm. Compression Bar Size: 10 cm. Storage Box Dimensions: 32 x 20 x 4 cm / 12.6 x 7.8 x 1.5 inches Package Weight: Approx. 1.4 kg / 3.3 lbs Fitment: For most cars, small vans and motorcycles Package Contents: < p> 1 x Spring Compressor Clamp 5 x Adapters 3 x Extension Screws 1 x Compression Bar 1 x Storage Case Note: Due to manual measurement, the sizes shown may differ by 1-3 cm. Thank you for your understanding.