JINYI 1. Sturdy and durable, good toughness, strong anti-aging ability, nickel-plated screw surface, corrosion-resistant, can be easily installed and disassembled without any tools. 2. Perfect Star Nuts: Using these star nuts in your mechanical projects can really give you a more comfortable grip. Also, you can adjust the machine without getting scratched. 3. EASY TO USE: This ergonomic plastic knob set can be easily adjusted and tightened for maximum control and flexibility without the need for additional tools. 4. Wide range of applications: suitable for fences, drills, lathes, wiring fixtures, fixtures, feather boards, mechanical equipment work, instruments, furniture, etc. Widely used in various fields of industry and life Quantity delivered: 2 pieces Size: M8 x 70mm Color: Black + Steel