"This competition-grade table tennis is a perfect choice for the game room , office , community center or eveb for home. It has sturdy 5/8 inch (15 mm) wood composite surface for a consistent ball bounce. Separate folding halves are convenient for easy setup, solo playback mode and compact storage. Dual locking devices and four locking casters per half provides additional safety during transport and storage Quick and easy assembly: 20 minutes"