Click or scroll to zoom Tap or pinch to zoom Move your mouse over image or click to enlarge Heavy-Duty Rubber Base $9.09 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Official size. Can be used for indoor or outdoor play. Suction grip underneath to prevent slippage. Solid white molded rubber construction. No spikes. Price per base.