Trap your hard to catch fish.
Removable feeding tube, where you can place food inside.
Strong suction cup(s) to hold the trap in place. ( first remove the thin plastic cover on the suction cup(s), loosen the suction cup's screw, press the suction cup(s) again the glass wall and then tighten the suction cup's screw. The suction cup(s) will stay strong )
SM - 5.91″ x 3.15″ x 3.54″
MD - 7.84″ x 5.91″ x 5.91″
LG - 9.84″ x 7.84″ x 7.84″