Balance ball bottom base is made of quality pvc material. balance balls are made of metal material. balance balls have 5 pieces. the balls go right and left and collide for a while creating a nice look in your office. the balance ball is also sent as assembled in its ergonomic box. (easy to install.) it is sent in a protected box. product dimensions height: 18 cm length: 18 cm depth: 11,5 cm. maximum 10 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 10 units. more than 100 stocks are available to be sold at the campaign price. the seller determines the selling price of the product you have examined. a product can be sold by more than one seller. sellers of products offered for sale by more than one seller are listed according to the price they set for the product, seller ratings, delivery status, promotions on the products, whether the cargo is free or not, whether the products can be delivered with fast delivery, and the stock and categories of the products. Create a party-ready atmosphere with this colorful LED lighting. Easy to install and perfect for events or home decoration.