SquirrelStop protects your hanging bird feeder from squirrels. When a squirrel climbs on your feeder, the increased weight starts the SquirrelStop motor, spinning the feeder and causing the squirrel to jump off. Squirrels learn to leave your feeder alone - and birds can enjoy their food undisturbed. Weight of squirrel (1/3 lb. or 150 g. minimum) on feeder starts the SquirrelStop spinning for 20 seconds, causing the squirrel to fall from feeder. Safe and harmless to squirrels and birds Works with any hanging feeder weighing up to 10 lbs Easy to use - no assembly required SquirrelStop helps ensure you are feeding birds - not squirrels 5946300204 Most Orders Shipped Out Same Day! Premier Ponds LLC pondinfo@premierponds.com U.S.A. Copyright © 1999 - 2007 Premier Ponds LLC, North Salem, New York. All rights reserved. Thermo-Pond Heater 3.0, Aquascape Designs Pond Kits, ScareCrow Sprinkler, Nursery Pro Micro Pond Kits, AquaClearer, Microbe-Lift, Great Blue Heron Decoy, Pond Liners, Thermo Pond Heater & Deicer, Premium Koi Food, Select Koi, Butterfly Koi, Pond Aeration Pumps, Flexible PVC Piping, BioFalls, Skimmer, Aquascape Pumps, Cat Stop!, Animal Control Products, Pond Netting.