The CHAMPRO 3-Spike Pitcher's Rubber is made with heavy duty, 1.75 cm thick UV-resistant rubber to endure the pressure of spiked shoes and prevent deterioration caused by prolonged exposure to sunlight. Reinforced threaded steel spike fixtures and three nickel-plated steel spikes help secure the rubber to the ground. Available in Official (6"x24") and Youth (4"x18") sizes.