Must-Have Tools Set - Different carburetor adjustment tools to get your carbs working perfectly again, for most 2-stroke carbureted engines. It is essential for those who maintain personal equipment. It's easy to use and durable for friends and family --Carb Adjustment Kit's ergonomically designed handle provides convenience and comfort for work. The built-in square handle makes it easy to determine blend settings in 1/4 turn increments. Heavy Duty Adjusting Head, Precise and Stable Cleaning Kit and Carrying Case - The cleaning kit is made of high-density nylon with good elasticity and no lint, including brush with needle and travel handle. Stainless steel winding, anti-rust, flexible handle, no deformation. A holster that protects the tool and keeps all screwdrivers from falling off.