Name：Big Plastic Transparent Aquarium External Drawer Water Filter Trickle Upper Drop Box Fish Tank System Model：SKU880066 Specifications: Material: Plastic Color: Clear Pattern: 10 Boxes 10 Boxes fit for 85-95cm fish tank Each Box Size: (L)X(W)X(H) 15*11*9.5cm /5.91*4.33*3.74"(appr.) Features and high quality. 1) This filter is placed on top of the aquarium. 2) The drip can increase the oxygen in water. 3) A trickling filter is a type of wastewater treatment system. 4) Provides a large surface area for beneficial bacteria colonies to grow. Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.