Wholesale Prices in Price Matrix, Use the glass lens with a sun beam and you have a great fire starter or period correct reading glass piece. Magnifying glass is 2" in diameter. 3X magnification The lens is period correct for different reenactors time periods, free-trapper craft projects and living history events revolving around reenactment events, Civil War, Boy Scouts, Rendezvous, Pirate, Renaissance, Medieval, Pow Wow, Living History and Cowboy).