Features 1、Basketball board set is made of quality high-grade steel material, durable and exquisite workmanship. 2、Easy to set up, can be installed on many standard backboards. 3、Basketball rim features a heavy duty steel frame, high durability. Features: Basketball board set is made of quality high-grade steel material, durable and exquisite workmanship. Easy to set up, can be installed on many standard backboards. Basketball rim features a heavy duty steel frame, high durability. This basketball goal hoop set is perfect for both indoor play and outdoor recreation. Specifications: Main Material: Steel Type: 1#(hollow style for adult), 2# (solid style for adult ), 3#(spring style for adult ), 4#(quality spring style for adult), 5#(hollow style for kids (optional) Dia: 450mm(1-4#), 350mm(5#) Package Size: 450*450*80mm/17.72*17.72*3.15in(1-4#) 350*350*80mm/13.78*13.78*3.15in(5#) Package Weight: 2000g/4.41lb(1#), 5000g/11.02lb(2#), 5200g/11.46lb(3#, 4#), 1400g/3.09lb(5#) Packing List: for adults set: 1* 1*basketball net 4*expansion screws 4*screws 1*air needle 1*pair of wrist guard 1*pair of ankle guard for kids: 1* Package List for adults set: 1* 1*basketball net 4*expansion screws 4*screws 1*air needle 1*pair of wrist guard 1*pair of ankle guard for kids: 1*