PRO POWER HS512-5M 3:1 Heatshrink Tubing 4.5mm x 5m Black Bescor BX10 this 39mm Threaded Lock Ring

this 39mm Threaded Lock Ring is used to secure an enlarging lens in place during use

It can be released by loosening the black thumb knobs

Inserts allow loop routing to external processing gear

Solid Ball Bearing Sliding Rails

1/8" Stereo Input

PRO POWER HS512-5M 3:1 Heatshrink Tubing 4.5mm x 5m Black Bescor BX10 this 39mm Threaded Lock RingThe HS500 series from Pro Power are flexible heat shrink tubes in black colour. These are available in 5m and 1. 22m reel lengths. HS500 series heat shrink tubes are manufactured with thermally stabilized flame retardant polyolefin. The heat shrink tubes are very flexible and can shrink at lower temperature. These are suitable for applications where temperature sensitive components protection is required. HS500 series also offers good mechanical and