Homestead Essentials' Premium Robbing Screens are a must have for your hive. The dual robbing/moving screen eliminates robbing and drifting while preventing the transmission of mites and the risk of re-infection of previously treated hives. This robbing screen is part of an apiary IPM program, managing varroa infestation in your hives, keeping your bees safe and healthy. With two entrances and separate gates eliminating robbing, and easy to grip gates latch, this robbing screen is essentials for any hives. The molded ventilation screen controls hive odors, while the durable technopolymer material makes this robbing screen strong and tough. To make this robbing screen even better, it is proudly made right here in the USA.