VEVOR Drywall Rolling Lifter Panel, 16ft Sheetrock Lift Drywall Lift, 150lb Weight Capacity Panel Hoist Jack Tool, Steel Material with Telescopic Arm & 3 Lockable Wheels, 48x192 in Plasterboard Size
What does what I think is called a "retaining hook" do?
I think it's numbered 26 (not sure it's blurry), It's a trianglar hook, I can't figure out what it does, perhaps it's a safety cable lock?
Based on the product information, it can handle larger drywall panels. The drywall lift features an adjustable telescopic arm with a range of 49 to 114 inches, accommodating plasterboards from 4x16 inch panels to 48x96 inch sheets.
The product description states it has 3 lockable wheels but does not mention specifics about durability. However, customers consistently state the wheels are durable and make transportation easy.