Description: 【Quality materials】: Extension Clamp is made of quality steel, the surface is painted, strong and wear resistant to ensure durability for long term use 【Retractable jaw design】: Extension Clamp can be used as a small vise to ensure that parts will not fall off before loosening the nut 【Application scenarios】: Extension Clamp is used in situations where it is impossible to grip, and is used to fix bolts and nuts to prevent them from rotating 【Improve efficiency】: Extension Clamp allows you to easily enter small places without removing guards and mechanical parts, improving your work efficiency 【Easy to use】: Extension Clamp is simple in design and easy to use, no professional operation is required Specification: Material: Steel Size Chart: 19cm/7.48inch 27cm/10.63inch 37cm/14.57inch Package Includes: 3 Extension Clamps  Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.