It measure 2.5"H by 12"W and comes in various lengths. They are designed to hang underneath kitchen cabinets. There are removable spacers to accommodate various cabinet designs. The 9 glass model is 13"L, the 12 glass model is 17"L, and the 21 glass model is 37"L. These hanging wine glass racks are made in the Napa Valley entirely from oak wine barrels retired from premium wineries in the Napa Valley. They are hand made by a 20+ yr veteran woodworker using premium joinery.