DescriptionAre you looking for a professional, yet affordable straighten tensioner? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional straighten tensioner must meet you needs. It is one of the best choices for you.Features- Color: As shown. - Size: 12 x 8 x 6 cm. - Material: Aluminum alloy. - Made of aluminum alloy material, durable to use. - Surface anodizing treatment, effective protection. - Easy to operate, simple combination installation and use. - Compatible for ENDER-3 Pro 3D printer. - It comes as a set of Y-axis belt stretch kit, you need to install it by yourself.