Features: Made from quality acrylic glass, the canopy provides excellent visibility and long-lasting protection without obstructing light Customizable Fit, Easily cuttable acrylic glass canopy allows for a fit on 48" x 18" aquariums ensuring flexibility for different tank setups. Specifications: Material: pc Color: transparent Size: 22.68 x 19.63 x 0.08 Inch/57.6 x 16 x 0.2 cm Package includes: 2 X Glass Canopy 2 X 10 mm Clips 2 X 8 mm Clips Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays