POP-UP DEFENDERS: Use Xtraman Blockers to safely simulate opposing defenders and obstacles for next level training in all major sports: basketball, soccer, football and more. PLAYER DEVELOPMENT: Coach athletes for success, use the blockers to encourage proper footwork and agility on any court or field. INDOOR & OUTDOOR SPORTS: Each blocker features a pre-weighted base for stability in indoor and outdoor training conditions. PORTABLE CARRY CASE: Collapsible design folds down for storage in the included carrying case, great for taking to and from practice.