Kids love to play outdoors and indoors. Make their playtime more exciting with the intex hit me bop bag set. Made of 0.20-mm pvc vinyl material, all the bop bags in the set are highly durable. This animal bop bag set has a water-weighted base that keeps all the bop bags in place when they are hit over and over again. Your toddlers will love to hit the bop bags as they bounces back and do not fall flat.