This is by far the best Small Hive Beetle trap on the market! We have been using this for years and it really works! The product has a single center bay that will act as a bait area. You should use apple cider vinegar as a bait. The two side bays will hold mineral oil. The mineral oil will drown the small hive beetles when they enter the trap. The trap will need to be cleaned on a bi-weekly basis.