KLOUD City Silver Stainless Steel Round Hair Dryer Shelf/ Blow Dryer Holder /Hair Dryer Holder(Hole Diameter: 3.5") Including install accessories Used for bathroom,washroom, barbershop and so on There is a rubber loop on the inner wall of the metal circle and it can protect your dryer Keeps barbershop counter more clean and tidy The holder size (LxWxH):5.5.x3.5x2.5, its hole diameter: 3.5. If have any questions or query, please kindly contact the seller as Kloud City.