Designed to get kids moving, grooving and out of the house, these up, in & overï؟½ bop bags by bestwayï؟½ are quality-tested and put the focus back on fun! Great for indoor or outdoor use. Available in 3 assorted animal designs, the bop bags have a built-in sand chamber for stability. Kids can develop their hand-eye coordination as they take a swing at the bop bag. They will have a blast bopping away with their new bop bags!