Specially designed to reduce the chances of collisions, spiking and injuries. Orange base is in foul territory and white base is in fair. Heavy duty vinyl covering with soft rebounded foam filler. Each base comes with 2 straps, 2 buckles and 2 spikes. Size: 30"L x 15"W x 3"H. Although this base is designed to reduce sliding injuries, it is not a substitute for using proper sliding techniques.