Made from durable and lightweight acrylic, combines both a horizontal and vertical prism bar.
The horizontal prism bar provides 16 segments at 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, and 45 PD.
The vertical prism bar has 15 segments that provide 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 25 PD. Includes protective case.