These 30-104 Micro Engineering medium spikes are 3/8 inches long and come in a pack of 800. Ideal for HO scale projects, they're a must - have for model building. Part number is 255-30104.

Using these spikes is easy. Just grab a pair of tweezers and place them where you need them in your HO scale model. Make sure to handle them gently as they're small. When storing, keep them in a dry place to avoid rust. If they get dirty, you can use a soft brush to clean them.