Watchmakers Loupe, Power 7X, Diopter 28D, Focal Distance 1.4 in, Lens Diameter 25.40 mm, Features Lightweight with Optical Quality Glass, Precision Molded to Fit Over Eye Lids
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.