Vertical prism set, model PB-1501: Horizontal prism set, model PB-1601
Horizontal prism set: 10, 20, 40, 60, 80, 100, 120, 120, 140, 160, 18△, 200, 250, 300, 350, 400, 450
Vertical prism set: 10, 20, 30, 40, 50, 60, 80, 100, 1220, 140, 160, 180, 200, 250, 300

This product can be cleaned with mild soapy water. Do not use alcohol or organic solvents.