These are multi-use poles can be used for volleyball and tennis. These poles are portable.
Features:“Multi-purpose poles: Volleyball & Tennis,Winch + Pulley System and a Base Drum for Portability,80mm Sqaure Pipe”
Includes:Winch + Pulley System and a Base Drum for Portability
Sizes:Size: Height – 8ft (Volleball) | 3.5ft (Tennis)