uxcell 10-Piece Fish Tank Air Pump Tube Holder Suction Cups, 6mm Diameter Aquarium Suction Cup; Color : Clear Material : Soft Plastic, Plastic; Fit Tubing Maximum Diameter : 6mm/0.24" Cup Diameter : 28mm/1.1";Total Size : 28 x 20mm/1.1" x 0.79" (D*H) Weight : 15g Package : 10 Pcs x Aquarium Suction Cups