1 Made of durable eco-friendly nylon PA66 which has the stable and long-lasting performance of acid resistant, alkali resistant, insulation and anti-signal inteference 2 With smooth surface, clean and clear thread, they look very nice, quite convenient and practical to use 3 There are different sizes available from which you can choose proper one for your building needs 4 Ideal for mounting between PCB circuit boards and machine boards, working great for creating thermal channels between chips, or creating multistory 'nerd' arrays of home made circuit boards 5 They do not skid easily with appropriate use.

What's in the box
1 x Threaded Spacer