Material: Made of bakelite, strong and durable, good toughness, strong anti-aging ability, nickel-plated screw surface, corrosion resistant, easy to install and remove without any tools.< /p> Dimensions: M8 x 70mm 3. PERFECT STAR NUTS: Using these star nuts on your mechanical projects can really give you a more comfortable grip. Also, you can adjust your machine without getting scratched. 4. EASY TO USE: This ergonomic plastic knob set allows for easy adjustment and tightening with maximum control and flexibility without the use of additional tools. 5. Wide Application: Suitable for fences, drills, lathes, routing jigs, fixtures, feather boards, mechanical equipment work, instruments, furniture, etc. Widely used in various fields of industry and life, our star button will be your ideal choice. Product Description: These star shaped buttons have High quality bakelite handles which are sturdy, corrosion resistant and not easily broken, ensuring long term use. Also, they are thick enough