Small foldable magnifier for inspection of plants, insects, etc…    The triplet lens that consists of three cemented lenses produces a better image quality than the doublet lens. The triplet lens image is corrected for three colors, and gives little or no distortion. The higher the magnification, the better this advantage shows.    TRIPLET 20x Magnification: 20x Lens diameter (mm): 21 Lens elements: 3 weight (g): 32 Delivery for this item may be up to 7 days due to popular demand.