Reassured MaterialThis adjustable wrench set is made of Cr-V material. Its surface is chrome-plated to prevent rust and make the adjustable wrench resistant to corrosion. In addition, the head has undergone high-strength and fine-polishing treatment, which improves wear resistance and prolongs the service life of materials Intelligent DesignWith metric and imperial laser scale indication, the aperture size is more intuitive and clear sprightly. You can easily read and readjust for optimal use. The nut can be opened and closed freely, easy to operate, saving time and effort Perfect choice for professionals and amateursThe wide opening meets the tightening needs of different sizes. There are hanging holes at the end of the handle, you can hang it up to avoid loss Must have toolsHave these adjustable wrenches, perfect for repairing pipes, machinery, cars, non-motorized vehicles, electricians, home repairs SpecificationsInclude 3 sizes: 150mm, 200mm, 250mm; Weight: 163g, 278g, 498g; Aperture: 19, 24, 28mm