FLEXIBLE SEATING: This multi-functional unit is more than a stool. It also serves as a place for teachers to store everything they need as they move from space to space. An included whiteboard hangs from one side to provide a convenient teaching aid. PREMIUM BIRCH-PLY: This unit is constructed using our unique, contemporary, cream-colored, premium, birch-ply. It features rounded corners for safety and a kid-tough, UV finish that makes it stain- and scratch-resistant. MOBILE: This unit features oversized, swiveling, industrial-grade wheels designed for an increased weight capacity. The wheels’ rubberized tread makes it easy to roll this unit over doorways and on the carpet. Each unit has 2 locking casters. VEGAN LEATHER SEAT CUSHION: 1.5" thick foam pad features a soft, blue, vegan leather cover designed to make this stool comfy for teachers, parents, and caregivers. Other colors are available - sold separately. AGE GRADE: Intended for adult use. TOTAL DIMENSIONS: 18"W x 15"D x 18"H. WARRANTY: This unit features our signature, lifetime warranty excluding the seat cushion which has a 2-year warranty.