Champion Sports Quilted Base Set: 3 Heavy Duty Youth League Kids Baseball & Softball Nylon Cover Bases - Boys & Girls Training & Practice Equipment Synthetic PERFECT FOR KIDS: This set provides optimum performance for young players developing baseball skills HEAVY DUTY: This base set features tough web straps for repeated use during training and games PRACTICE: Includes uniform first, second, and third bases filled with foam for safe, soft landings STEEL SPIKES: Secure bases with the included steel spikes or simply throw them down on gym floors MULTI USE: Must haves for youth baseball and softball recreational leagues, schools, and parks