BOOSTER LENS AIMING RINGS 2COL.6.5-7.5

Set of adhesive rings for compound diopters in sizes from 6.5 mm. to 7.5 mm. in diameter for a total of 36 black and 36 fluorescent orange rings distributed as follows:
- 12 x 6.5 mm.
- 12 x 7 mm.
- 12 x 7.5 mm.
The kit also contains a slightly adhesive centring tool, which prevents the lens from shifting when the ring is fitted.