[Product size]aquarium fish tank cover board kit includes 4pcs of 11.6 Inch x 11.6 Inch aquarium cover top boards with 0.35Inch hole and 6 aquarium cover board lid clips [Novel design]Our fish tank hood boad can be freely pieced together through concave convex buckles, and can be cut into the shape you want with scissors [Multiple usage functions]The aquarium divider lid board can be used as an aquarium isolation board,a bottom tray for aquarium filters or aquarium cover lid,turtle platform etc [Safe material and No harm]Our aquarium isolation cover lid is made of plastic, which will not affect the water quality and no any harm for fish or aquatic plant The aquarium borad kits contains 6 units borad clip which can hold below 0.82Inch thickness aquarium glass wall to support the borad as aquarium lid terrarium lid etc Colour:Transparent White Material:Plastic Size: lid 30x30cm Package Contents: 4x Aquarium lid 6x Board Clip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.