... sponge. Nano tools complete cleaning setNano tools 4-in-1.Aquarium cleaning set 4-in-1including:fish net,gravel rake,cleaning sponge plant fork ... and acleaning sponge,makes aquarium maintenance as simple as possible.3.assemble the handle and accessory holder to the rod, ... holder,these are easily interchanged. Free Shipping Aquarium cleaning set 4-in-1:fish net,gravel rake,cleaning sponge plant fork and ...