Glows after being placed under bright light for 10 mins Transforms from kids sofa chair into round play mat Satisfies kids using needs like reading, playing, resting Soft flannel cover and thick sponge filling for comfort Ergonomic backrest & hand support for good sitting posture Zippered cover can be removed for easy machine washing Wonderful gift ideal for boys and girls aged 3 years up No assembly required. Inflate fully after 72 hours