The XTRAMAN Blocker Pop-Up Defenders are game-changing multi-sport training aids for safely simulating opposing defenders and obstacles. The complete set includes 3 pre-weighted collapsible blockers, carry case, and instructions with example drills. Professional coaches can now upgrade practice sessions with more dynamic training! The defenders instantly pop up so coaches can set up athletes for game day success by encouraging proper footwork and agility on any court or field. The blockers are each pre-weighted with 4lb sandbags for stability to resist tipping in indoor and outdoor training conditions for all major sports: basketball, soccer, football, lacrosse, baseball, and more! The collapsible design makes the blockers compact and easy to store in the included carry case for convenient portability. Now coach and train like the pros with GoSports Xtraman Blockers!