Ware Manufacturing Home Sweet Home Pet Cage for Small Animals 40 Inches Pack of 3 remote trainers 3 acre to 496 acres 3 acre to 496 acres Rechargeable and waterproof collar with beep shock 3 levels of static correction to match dogs with different sensitivity A full stimulation lasts 20 seconds at a time The stimulation was limited to 3 times to prevent overstimulation All functions are integrated in the collar Reduces the spread of bacteria which can cause "doggie" odor as well as bacterial infections and allergies Our Home Sweet Home three Packs come in three sizes to accomodate most small pets They have a deep plastic base and an easy snap on top made of durable powder coated wire