Made from performance rubber. Show your support for the boomers with our rubber replica retro boomer Gold Spalding basketball. The ideal outdoor basketball for any boomers fan. Featuring retro Spalding, Basketball Australia and Australian Boomers logos. - Performance Rubber - Outdoor use - Size 6 and 7 - Retro boomers design. SPECIFICATIONS More Information SKU 6056/BOOM/BGY | 6057/BOOM/BGY Material Rubber Playing Surface Outdoor Size Range Size 6 & 7 Inflation Guide 8 psi