The Leuchtturm magnifier TWIST with 3x magnification is a multi-function magnifier plus LED light. The magnifies has an acrylic lens. The dimensions are: 3 1/8 x 2" (80 x 53 mm). This magnifier can also be used hands-free. Overall size: 5 x 3 3/8 x 5/8" (126 x 85 x 15 mm).