1Waterproof design, easy to clean and carry, can be set up in a few minutes, no tools are required for assembly. 2Soft material and highdensity structure of bottom prevent your child from being injured when playing. 3It is safe and non-toxic, easy to clean, and two windows allow air to circulate, ensuring a wide view. 4Transparent side design is convenient for parents to observe baby's activities anytime and anywhere. 5It can cultivate children's social communication ability, sports ability and spatial awareness ability.