Our Single Models are Sturdy 18" Clear Acrylic with Smooth Polished Edges (except SASR15 in 14") SASR3 is 3"W x 6"D x 6"H. Each Shelf is 3"W x 3"D - 2 Steps SASR4 is 4"W x 4 34"D x 3 12"H. Each Shelf is 4"W x 1 34"D - 3 Steps (BLACK, CLEAR, FROSTED) SASR6 is 6"W x 6"D x 6"H. Eachmore...