‘Prat Armor’ is what sets these mound apart. Heavy-duty, high-density foam core with “PRAT ARMOR” distinguishes these skid proof pitching mounds as the most durable and lightweight models on the market. Regulation pitching rubber. Artificial turf is spike resistant. Guaranteed not to damage gym floors. Includes caddy for easy transport. 10″H Collegiate available with Green or Clay turf. Ships via truck.