Combination Prism Bar Set
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. Vertical prism bar has 15 segments that provide 1 2 3 4 5 6 8 10 12 14 16 18 20 25 and 30 PD. Includes protective case.