describe Lens material glass Product dimensions Length x Width 27.5 x 13.5 cm Handle material acrylonitrile butadiene styrene [Lighted reading magnifier]: The handheld magnifying glass is made of high-quality ABS PMMA lenses to ensure clear images without distortion, lighter than glass, more scratch-resistant, smooth surface, lightweight, ergonomic, optical-grade lenses can keep you clear. Observe the details carefully to relieve intraocular pressure Lighted reading magnifier: The lighted reading magnifier has 33 built-in LED lights with 3 brightness modes and two 30X lenses. The powerful magnifying glass has a USB port and can be charged at any time. The LED magnifying glass can be used continuously for 26 hours in low light conditions; for 8 hours in strong light conditions and for 6 hours in very strong light conditions. 【Large Handheld Magnifying Glass】: The overall size of the magnifying glass lens is 11 inches, the diameter of the magnifying glass lens is 4.3 inches, and the