The compact Protecta Sidekick is a prudent way to upgrade from non-tamper-resistant bait stations to a more durable tamper-resistant station. The Protecta Sidekick functions as both a bait station and monitoring station. It"s vertical bait securing rods hold bait blox securely in the station, reducing the risk of accidental bait exposure to children, pets and non-target animals. The Protecta Sidekick also works as a monitoring station and it is specially designed to hold Trapper T-Rex Rat Snap Trap which captures rats as they enter the station. The lid on this bait station opens to the side for fast, convenient servicing, even when the station is secured and its rounded interior corners make cleaning the station easier than ever.4 lbs Contrac Blox Rat and Mouse Control Bait. Active Ingredient: Bromadiolone .005% Target pests: rodents Pet safe: Contrac is LESS toxic to non-target animals in both primary and secondary poisoning situations than other single-feeding baits. An antidote, Vitamin K1 is readily available and there is a time factor for treatment. Yield: approx. 64 - 2 x 3/4 inch blox per 4 lb. pail. 4 x4 pails included