Unger International 961800 4" Tele Plus Extension Pole2 stage aluminum telescopic pole attaches squeegees, bulb changers, dusters, and any other attachment for easy access to high places. 3 easy ways to attach accessories: Screw-on, snug fit, and snap-on. Dusters screw on so they don"t loosen in tight places. Bulb changers snap into the pole so the attachment stays on. Squeegees and scrubbers snug on for quick change between the 2. Ergonomic nylon collar locks and loosens in 1/2 turn. Unger International 961800 4" Tele Plus Extension Pole Features: A flexible modular system Enables you to assemble poles with extended lengths Made of drawn anodized aluminum are light and can be handled easily and safely 4" system