Ideal for stepping, crawling or climbing activities,These handy footsteps nest together for easy storage.Made of durable oak laminate and wood with non-slip matting.Stools measure: 16"W x20"L x 8"H; 14"W x 18"L x 6"H; 12"W x 14"L x 4"H and 9"W x 12"L x 2"H.16"W x 20"L x 8"H (closed).