Auto Solid Valve Spring Compressor C Clamp Service Kit Features: 5pcs pusher for fitting the valve spring correctly and easier to compress the valve spring. Package Includes: 5 collets of size 16mm, 19mm, 23mm, 25mm, 30mm, 3 extension screws3 extension screws1 spring compressor U-clamp spring compressor U-clamp with a max jaw opening of 9-1/2 inches1 compression bara plastic blow-molded carrying case, easy for transport,storage and quick organization Function: The 10pcs Overhead Valve Spring Compressor Installer Remover Tool is used to compress valve springs or safely dispose of cylinder heads when removing and installing most cars, motorcycles or other small engines. Premium Quality: This Valve Spring Compressor Tool is constructed from high-quality metal with a black-oxide finish, durable, resisting rust and corrosion. Package Content: The DASBET Auto Valve Spring Compressor C Clamp Service Kit includes a wide C clamp, 3 extension rods (3" 4.4" 4.4"), 5 collet adapters (16 19 23 25 30mm), and a 4-inch hand lever. Length of each collet: 1 & 3/4"; Max jaw opening 9-1/2". Wide Application: The Valve Spring Installer Remover Compressor Tool Set fits for Most Car, Small Van, ATV, UTV and Motorcycle Engines. Suitable for professional mechanics and beginners. Easy Storage and Transport: The C clamp service kit comes with a plastic carrying case, easy for transport,storage and quick organization.