This magnifier is built into a fully removable flashlight-type assembly for illumination. Includes a hard-shell vinyl case. Requires two “C” batteries, not included. Unit measures 1-3/8" Dia x 7"L, weighs 3.5 oz. 7X includes a 26mm diameter reticle with a scale of 0 - 20mm in 0.1mm increments. 10X includes a 35mm diameter reticle with a scale of 15 - 0 - 15mm in 0.1mm increments.