Clear plastic, has a 3/8" strip that
slips onto the lip of the hood to secure it, also has a 1 1/2" thinner area on
the back edge that can be cut to allow for filter accesories and cords. Back
strips are an essential piece of an aquarium if dealing with fish that can
potentially jump out of an aquarium.
Place on the back of the glass canopy and cut out the areas where cords or wires