Keep squirrels from raiding your hanging bird feeder. SquirrelStop motorized bird feeder spinner uses 3 D cells and activates when squirrel's weight is added to the feeder. Squirrel jumps off as the feeder spins. Squirrels learn to stay off the feeder - and birds enjoy their food undisturbed. Set Up: Hang where SquirrelStop and feeder are at least 18 Inches (45 cm) from the nearest object. Fill feeder with seed, keeping total feeder weight under 10 lbs (4.5 kg). Hang feeder from the SquirrelStop. Turn on SquirrelStop. Note: Turn off SquirrelStop when refilling and hanging feeder. Components and Specifications: Squirrel Triggered: Squirrel's weight, minimum 1/3 lb. or 150 gm on feeder starts SquirrelStop for 20 second spin and squirrel jumps off. Safe: Harmless to squirrels and birds. Use with Most Hanging Feeders: Maximum feeder weight is 10 lbs. No Assembly: Attach feeder to SquirrelStop. Limits Wasted Bird Food: Birds are fed, not squirrels. Hang SquirrelStop from rigid branch or pos