yes it is black duct tape and it works just fine for its purpose, thats what we poor folk use when we are saving up to build a rack
not a good idea to use any thing with glue on it the snake may peel an end up and get a piece stuck to them but the heat will make he glue of the tape loosen up and turn into fumes a new tub at wallyworld is about 8 buck i'd invest in a new one