VEVOR Telescoping Aluminum Work Plank, 440lbs Capacity, 12.5 inch Width Extension Scaffolding Plank with Skid-Proof Platform - Amazon.com
Amazon.com: Metaltech M-PEP7000AL Telescopic Aluminum Plank Board, 6 to 9-ft. Adjustable Work Platform for Step Ladders and Sawhorses, Work Plank, Ladder Accessory, and Scaffold Tool for Home Improvement : Metaltech: Everything Else
Werner 8 ft. - 13 ft. x 14 in. Telescoping Aluminum Extension Plank with 250 lb. Load Capacity PA208 - The Home Depot
Little Giant Ladder Systems Adjustable Plank, 8'-13' Model, 500 lbs. Rated, Aluminum Ladder Accessory - Walmart.com