【High quality materials】Made of high quality crystal glass, high gloss, acid and alkali resistant, no corrosion, flatness is good, no water ripple. 【Design 】Planaria catcher comes with 2-hole, 3-hole and 8-hole design which helps to effectively trap planaria inside the tube to reduce planaria population in aquariums. The catch mouth is less than 1mm and does not hurt the young shrimp by mistake. 【Exterior】Production】Glass production, crystal clear: no damage to the beauty of the shrimp tank, delicate, efficient and safe. 【No pollution】Trap Planarian glass trap high quality for removing planarians from your fish and shrimp without any chemical or medical damage. 【Pack】Package: 1 x 2 hole planarian trap, 1 x 3 hole planarian trap, 1 x 8 hole planaria trap.