Large 14” x 11”, ¼”-thick rubbercovered steel base adds stability. Will not tip over; no extra weight needed. Always-feel-the-ball™ flexible top. Patented internal interlocking bolt design prevents slippage of the upper tee stem. Telescoping stem unscrews from the base. Base with patented grip-n-go™ handle makes for easy transport and will fit into most travel bags. Any age level – youth to pro.