This robust steel base plate is suitable for use with most truss or modular U-frames. Supplied without conicals to allow customers to configure the base plate to suit their preferred truss type. Predrilled holes will accept our F31PL F31PL 500mm U Frame F32PL F34PL F34 Standard F44 Standard series Ideal for use with four Penn Elcom castors (not supplied) Requires GL3000 half conical connectors for PL series GL5003 half conicals for Standard series (not included) Also for use with Curtain Call Pipe and Drape (Spigot required) Four carry handles for ease of movement