A complete horizontal & vertical prism bar set with durable aluminum case. Has been trusted and liked by optometrists, this prism set has been manufactured with great accuracy.

Horizontal Prisms Bar Powers:

1,2,4,6,8,10,12,14,16,18,20,25,30,40,& 45

Vertical Prisms Bar Powers:

1,2,3,4,6,8,10,12,14,16,18,20,25,& 30