Droll Yankees RLS Squirrel Slinky The squirrel slinky is a pole mounted predator guard; poles are compatible with Droll Yankees poles and pole systems or 1 inch diameter poles. Squirrels, raccoons and other climbing critters can't gain any headway when they try to climb over a squirrel slinky Fitted with a high tensile spring, when weight is put on it, the slinky lowers toward the ground If they get far enough to move their weight from the Slinky to the pole above, the slinky rises and pushes their paws off Part of the ultimate pole system