My little girl is so into gymnastics we bought her a longer training air pad that she uses with friends but wanted to get a tumbling mat designed specifically for tumbling and certain moves. This Goplus 40‘’ air track gymnastic mat, 8" thick is much quicker and easier to set up and air up when she just wants to practice her tumbling moves with a “spot”.Turned out to be a great tumbling exercise training mat, that comes with an electric air pump, so you do not need to worry about that. It is also waterproof inflatable round springboard air roller mats also good for mom seen her sneaking it out in the living room for a yoga floor mat.Ultra-thick & body protection if you fall this inflatable round gymnastic mat is about 8'' thick, which will make difference in shock absorption to protect our little girls’ ankles, knees, and joints. What I like most is the quick inflation & leakage-proof just connect the gymnastic mat to the powerful electric pump and wait for seconds and you are ready to go.Made of high-quality material & anti-skid surface durable 500d filament grade and high-quality PVC tarpaulin meaning it is tough as nails. You will not go wrong with this purchase.This is made of durable material. However, I guess I should have read the size better and not went by the picture. The picture is deceiving as it looks like a teenager is on it with plenty of rom to spare. It is barely enough room for my 4 year old to do anything on other than jump up and down. For the price I would have purchased a different product. Lesson learned-always read the size.This thing is lit ?. It says not to use in water but oh well. Took the mat to the lake and played king of the hill . Was fun ,and surprisingly easy to transport .