1.Valve Spring Compressor C Clamp Tool Set Service Kit includes 5 adaptors to correctly fit, install, and remove automotive valve springs,Suitable for your motorcycle, ATV, UTV, car, and other small engine vehicles and equipment; All collets are 1.75 inches (4.4cm) long with 9.5-inch (24.1cm) maximum jaw openings 2.Valve Spring Compressor Small Engine, This toolset is used to easily and ly compress valve springs for removal or installation.The forged steel construction of this set provides superior strength and hardness. The C-Clamp will not bend or twist under the stress of compressing valve springs. The oxide finish on the set components resists rust and corrosion. The surface finish of each part is smooth and provides for easy use under high compression. 3.Valve Spring Compressor Tools -come packaged in a high-impact case that holds each part securely. The parts will remain organized and while stored or in transport, and the case stacks and stores away conveniently.1 x Spring Compressor ""C"" Clamp ,5 x Adaptors ,3 x Extension Screws ,1 x Compression Bar ,1 x Storage Case 4.Solid Valve Spring Compressor Kit to effortlessly reset your valve springs. The Orion Kit comes fully stocked with 5 collets to fit hundreds of makes and models, such as motorcycles, ATVs, cars, and other small engines.