Drop pole and 5/8" inch steel ball for use with the BPI Drop Ball Tester. The 5/8" ball is used for testing normal ophthalmic lenses.
This item is not available for sale over the Internet. To order, please call BPI directly:
BPI 5/8" Drop Ball Pole
- Brand: Brain Power Inc.
- Product Code: 19105
- Availability: Call for availability.