 "AXIS camera dome bubble" " AXIS bubble - 5502-171 Physical Security & IP Cameras CDW.com
 "C2G RapidRun - coupling ring" " C2G ring 98015 Audio/Video Cables CDW.com
"Two coupling rings are provided with every PC (yellow) and Multimedia (blue) RapidRun runner cable for connecting break-away flying leads or wall plates. This 2-pack is available to replace those rings that are lost or misplaced.After installation, remove the pulling cap from the runner cable. Attach the coupling ring to the runner cable. Each end of the coupling ring has different threads. The knurled end will face away from the cable. Connect the break-away flying lead or wall plate to the runner cable via the coupling ring." 