This Glass Right Angle demonstrates light reflection and inversion by redirecting light at a 90 degree angle so that it exits the side perpendicular it entered. Made of glass to efficiently reflect light and invert images. Prisms are commonly used in classrooms to demonstrate optical principles. Feature - Color: As Shown. - Material: Optical Glass. - Size: 1.50X1.00X1.00cm/0.59X0.39X0.39in - This premium quality glass is made from polished optical glass, add vivid and color effects to your photos. - Ultra Clear: The photo triangular is well crafted and scratch and bubble free. - Portability & Convience: Lightweight and travel size. Length: 10mm, small&portable to carry. - Great gift for photographers, fashion bloggers, science teachers or for preschoolers, kindergarteners, and elementary students. Package list: 1 x Right Angle