This heavy-duty throne features a durable, motorcycle-style vinyl seat with thick memory foam and leg ridges for the ultimate in comfort. Its sturdy, heavy-duty base has double-braced legs and adjusts by twisting the top in any direction. · Seamed memory foam padded seat · Top dimensions: 16-3/4 Width x 14-3/4 Diameter x 4-3/4 Height. Height range: 20 to 26 · Heavy-duty double-braced base: B9608