Genuine Velbon quick-release camera platform QB-5RL with retractable camera alignment pin and 1/4-20" tripod thread adapter fitting the Vel-Flo 7 (PH-358), CX-586, and the Videomate 538/F. Made by Velbon Japan.
Velbon Quick Release Platform QB-5RL | Vel-Flo PH-358 | CX-586 | Videomate 538/F