Specifications Color : Natural wood color Material : Birchwood 12 Inches Overall dimensions : 35'' x 12'' x 8'' (L x W x H) Net weight : 7.5 lbs 15.5 Inches Overall dimensions : 35'' x 15.5'' x 7.5'' (L x W x H) Net weight : 9.5 lbs Weight capacity : 660 lbs Recommended age : 4 years old and up Key Features ● Support 660LBS Both for Kids and Adults: The balance board allows several kids to play together and also allows parents to get involved and promote parent-child bonding. Meanwhile, you can use the balance board as fitness equipment for exercise, Yoga, Pilates, or physical therapy at home. ● Great Balance Training: This wobble board is designed to motivate kids' active nature. It is not only fun to play with, but also conducive to training their coordination ability and sense of balance. The rocking process will stimulate kids' vestibular system and promote brain development. Thus, the board benefits kids physically and mentally. ● Endless Fun of Curvy Board: In addition to being a balance board, this open-ended learning toy has other more imaginative ways of playing and brings kids endless fun. The kids can turn it over to make it a bridge for toy cars, or make it a bench when they need extra seating. It can also be a slide, a rocker, a tunnel, and so on. ● Natural Wood and Exquisite Workmanship: Crafted from natural birch wood, the wobble board is environmentally-friendly and has good tenacity. The edges and corners are rounded to prevent potential injuries. The surface is coated with varnish, which is non-toxic, odorless, and water-repellent, making the board safe to use and easy to clean. ● Long-Term Use and Easy to Carry: The wooden balance board has both aesthetics and practicality, and can be used for a long time without deforming or cracking. The thickness of the board is 0.7”, which ensures a maximum load-bearing capacity of 660 lbs. Besides, the board weighs only 9.5 lbs, so is easy to move and carry, allowing you to use it indoors or outdoors.