Safe material: made of silicone, reusable, comfortable and safe for both adults and children. Pressure release toys can be used for a long time, can be reused and cleaned. Toys: The combination of backpack and the push bubbles toy is not only a very interesting bag, but also a practical anti-anxiety tool. Large Capacity: The large capacity design makes it convenient for you to carry more items when you travel. Strong Load Bearing Capacity: The shoulder strap and buckles are firm and sturdy, which makes this backpack be in a strong load bearing capacity.