uxcell Fish Tank Self-Floating Water Surface Oil Protein Skimmer Surface Skimmer; Fit for : Aquarium, Fish Tank Material : Plastic; Size : 28.5 x 5.5 x 2.7cm/11.2" x 2.2" x 1"(L*W*D) Flexible Hose Size : 16.5 x 2.1cm/6.5" x 0.8"(L*D);Suction Cup Diameter : 4cm/1.6" Color : Black; Net Weight : 96g 1 Set of Surface Skimmer Unit