Oreq BR4022B 22" Pro Endforcer Algae Brush Stainless Steel Bristles - Black No Metal - No metal = no corrosion, no pole damage, no vinyl liner tearing, no rust causing screws to leave behind. Stronger - The patented SpeedLock collar strengthens the tool connection while still allowing it to flex and bend when needed. Magnetic - Strong magnets allow you to quickly pick up those rust causing metal objects. Pole Protection - The pole fits in the SpeedLock collar, eliminating pole flare damage, and extending the life of your pole. Corner Brushing - Exclusive bristled end caps designed for brushing in those difficult corners.