The cover and cushion are made of soft NBR material, children can play this with no hurt worry to get hurt.  All of our products are made of soft and Eco-friendly material, so as to offer kids the most entertainment and also reduce the probable hurt to the least. Our production concept is: Create fun for kids, help them grow up with happiness and healthy body. We believed that this new product can make people who use it with more pleasure and more comfortable. And it will draw the eyesight of people who seldom notice jumping exercise.