The perfect solution for using your Platypod spikes, switching between delicate and rough surfaces. Just a few twists of these high-quality rubber tipped nylon feet and you can reveal and alternatively shield the pointed ends of the spike screws. Also, add extra safety when spikes are in the vertical position with the black rubber feet pointed downwards. 4 retractable co-molded nylon and silicone rubber feet for Platypod spikes. Works best with Platypod eXtreme.