Einstein may have shown that space was curved, but this chair gave tangible expression to the idea, Now over forty years since the Slither chair was first molded, budding scientists can rediscover the cosmos with this clean and durable playroom chair!, For playroom or classroom use, Tough ABS Construction, Made of ABS construction, Stackable up to 4 High, Single injection mold, Ergonomically Designed, Contemporary curved “S” shape, Kid Sized, No assembly required, Dimensions: Overall Product Dimensions: 13""L x 16""W x 22""H, Seat Height: 9""H, Product Mterials: ABS Plastic SKU: EENI078