United Scientific PSET06 Acrylic Prisms Set, 6 Pieces inside the gearbox has four

inside the gearbox has four gears that can be easily reoriented to change the gear ratio

Various sizes of 2" to 8"

Includes 1 lantern and 2 tent lights

grating and blending

United Scientific PSET06 Acrylic Prisms Set, 6 Pieces inside the gearbox has fourSold as a Set of 6 Set of six prisms in a variety of shapes demonstrate the properties of light Polished, clear acrylic resists shattering and impact Wooden box with die cut foam for ease of storage An ideal hands on activity for use in any science curriculum or laboratory Boxed set of High Quality Acrylic Prisms, made from clear acrylic sheet, all sides polished. The set consists of six prisms in a variety of shapes, and an activity guide. Contents: