A basketball rim is 18 inches in diameter. The rim | Chegg.com
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A Standard Basketball Rim (diameter = 0.45 m) and a Reduced Diameter... | Download Scientific Diagram
Amazon.com : Walled King Diameter 32cm Metal Basketball Hoop for Children Basketball Goal Hoop with Net Screw Basketballs Rim for Outdoors Indoor Kids Supplies (Color : 32 cm) : Sports & Outdoors
Strong Stainless Steel Poola Hoop Basketball Rim for Backup - 18" Diameter | eBay
Basketball Rim Size Cut in Half for All Levels - Basketball Manitoba