The spiker sand coaster is made of durable Plastic PP. Spiker beach holder-share with family and friends or they will take yours. just spike it, in the sand next to your beach towel or chair, add a cold drink, music player, phone, suntan oil, sunglasses, anything you want to keep off the hot sand, spiker keeps your items cooler, sand-free, spill-free, spiker fits easily in your beach bag. Customized logo is welcome.