The Fish Tank Comb is made of reliable acrylic material, ensuring safety and durability. overflow effectively prevents water and fish from overflowing. It is also easy to clean and does won't damage the water quality. You can use it with ease. Features -Color:Black -Material:Acrylic -Size:20.00X5.00X0.30cm/7.86X1.97X0.12in -Size:10.00X5.00X0.30cm/3.93X1.97X0.12in - The reliable material used in this product ensures both safety and durability, making it a reliable choice for fish tanks and aquariums. - The unique design of the overflow comb effectively prevents water from spilling over. - This product can be easily placed in interconnected aquariums, serving as a fish barrier to prevent fish from swimming into unwanted areas. - The detachable design of this overflow acrylic fish comb filter makes cleaning and maintenance a breeze. - It is a practical and necessary kit for the fish tank starter, which is easy you use and install. Package list: 1 tank comb(10cm) 1 tank comb(20cm)