Removable hand crank mechanism allows easy and secure height adjustment for players of all ages
Heavy wall steel poles and clear polycarbonate backboards provide professional-grade durability and visibility
Textured black powder-coated finish protects against rust, corrosion, and outdoor elements
30 inch safe play area ensures player safety and consistent clearance across rim heights
Unbreakable clear backboards deliver professional rebound and lasting visibility
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Bison ZipCrank Playground Adjustable System Description The Bison ZipCrank Playground Adjustable System offers reliable outdoor performance for schools, parks, and recreation facilities that want adjustability without sacrificing strength. Built with heavy-wall steel poles, clear unbreakable backboards, and a smooth hand-crank mechanism,