Canare CB03 Connector Boot for 75-Ohm BNC, RCA, F Crimp Plugs/Video Patch Cords (Red) ORCA OR-30 they don't need wheels as

they don't need wheels as they slide along the rail and are suitable for normal cable

video phone and vehicle rear view etc

The movable plastic splints separate the speaker from the stand creating a vibration-free connection with an easy to use ring lock

It also features a passive counterbalance system

2 dB / 328 ft (100 m) at 750 MHz Cable O

Canare CB03 Connector Boot for 75-Ohm BNC, RCA, F Crimp Plugs/Video Patch Cords (Red) ORCA OR-30 they don't need wheels asPackaging Info Package Weight 0. 02 lb Box Dimensions (LxWxH) 1. 04 x 0. 02 x 0. 02" All product and company names are trademarks or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.