Ball with 60 letters/numbers on the surface. 90mm. (3.6″) diameter; 90 gr. weight; made of polyurethane material.
Each ball includes plastic adhesive hook for hanging up.
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Ball with 60 letters/numbers on the surface. 90mm. (3.6″) diameter; 90 gr. weight; made of polyurethane material.
Each ball includes plastic adhesive hook for hanging up.
Ball with 60 letters/numbers on the surface. 90mm. (3.6″) diameter; 90 gr. weight; made of polyurethane material.
Each ball includes plastic adhesive hook for hanging up.
Brands | Bernell USA |
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Aperture Rule™ Trainer Kit is a standard instrument in most VT programs. Features progressive fixed demand. Polarized or colored lenses are not required. Helps improve low fusional and accommodative reserves, poor stereopsis, Fixation disparity suppression & tight accommodation-conversion relationship.
The Prism Bar Holder Kit combines a prism bar holder with two horizontal prism bars. The handle holds two horizontal prism bars side by side to get a quick estimation of a prism prescription.
The prism bar set includes the holder along with 2 horizontal prism bars. The prism bar holder can be purchased by itself.
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