‎80% sponge, 20% PU synthetic leather

[Effective Booster Seat] The toddler booster seat is made of high-quality PU synthetic leather and a high-density sponge, which is comfortable and not easily deformed. A toddler booster seat for the dining table makes your children enjoy the meal comfortably. And babies won't feel different from other people on the table because of their height. [Improved Design] Compared with other old models on the market, our toddler booster chair considerately added a waist belt on the seat cushion. It prevents your child from falling out of the chair and avoids accidents. The booster table seat fully protects your child without worrying about your child's safety, which makes you focus on your meal peacefully. [Safe And Non-slip] The booster seat cushion is 12.6 x 12.6 x 2.75 inches, and the back cushion is 12.6x12.6x1.57 inches. There are 4 adjustable straps and non-slip bottom under the child booster seat for dining table to prevent the booster cushion from sliding forward or left or right. The chair booster makes sure that the booster seat will not slip off so that children can eat safely.