SE MH7017B 2-1/2" 4x Folding Pocket Magnifier This compact and lightweight item easily fits almost anywhere you need it Glass lens with a diameter of 2-1/2" and a magnification of 4x Sturdy black plastic body Convenient hole on the tapered end so a chain, keychain, key ring, lanyard, or split ring can fit through it Knurled thumb grip for easy opening and closing