Square design for bottom pole, which avoid the poles swing during playing, better design compared to other brands. Set come with (1) HDPE plastic base, (1) deluxe red/blue machine-sewn soft tetherball with pump (needle included), (1) nylon rope, (1) carabineer, (4) metal poles and (3) steel stakes. Support to 750lbs, 32 inch Heavy-Duty Portable high-density polyethylene water Base which can be filled with sand or water for safe and fun playing. 8.5inches soft machine-sewn tetherball with wrap yarn, better quality rope supports a long time and tons of fun. Portable design for Adult play anywhere, indoor, backyard, sand, grass, or concrete play. All the metal poles could be easily assembled and disassembled in a few minutes and has a space-saving tray for all parts on the backside of the base for easy storage and transportation.