LED light loupe, thread counter,metal frame, magnifier lens: 10x, 27mm dia. ,handheld,portable,3pcs of white LED, with 0.5mm and 1/16 inch division grade, measuring field: 20mmX3/4", it needs 3XAA batteries, each packed in a gift pouch, then in white box,suits for stamp cheque, thread counting, jewel loupe, linen tester.Top level quality, competitive prices.