It's Only 2.5" Long, But It Gets Even Smaller! When You Fold Back The Lens Cap Section, It's Only 1.5", But What A Powerhouse! This Little Microscope Has 30x Magnification Power, 1 Led Light And 1 Uv Light. This Little Microscope Is Attached To A Key Ring, So You Can Take It Along Anywhere You Wish. 2.5" Long, 30x Power Weighs Only 0.04 Oz Folded Length 1.5" Led And Uv Lights Includes Key Ring