About this item: 
「Non-slip Surface & Thick Rubber Bottom」: Truly simulates rock wobbling, Excellent outdoor play equipment for kids with full rubber rim helps the blocks firmly place on the different ground (carpet, floor, grass, etc.); And there are embossment patterns on the blocks' surface to make sure kids won't slip on it. 
「Endless Ways to Play & Ideal Daily Exercise Equipment」: 1 set of our balance stepping stones includes 4pcs blocks with 4 sizes for different ages. Kids can walk, stand, jump or climb on the river stones, obstacle courses, and configurations. 
「Perfect Gift for Children or Family」: makarci balance stepping stones are designed to develop kids' balance skills and body coordination with joy. It is an outdoor toy and equipment to promote kids' sensory integration within the daily exercise. And its bright colors can help kids figure out colors. Stackable and lightweight mean kids can arrange and clean up the stepping stones by themselves, saving room and freeing parents' hands. 
「High-Grade & Enough Material, Durable & Strong Bearing」: Using non-toxic and odorless healthy PP material, it is even more durable than natural river stones, so please feel relief to place them outside. The max load is 220lbs, also suitable for adults, so this balance training kit is also an excellent parent-child game toy.