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!Tough ABS Construction, Stackable up to 4 HighErgonomically Designed, Kid SizedFor playroom or classroom use, Single injection moldNo assembly requiredOverall Product Dimensions: 13"L x 16"W x 21.5"HSeat Height: 12.5"H