black/transparent plastic, with biconvex plastic lens (ø 30 mm), comes in cardboard box, h = 46 mm
Plastic cylinder magnifier (loupe)
from 2,50 €
black plastic, double-convex plastic lens ((ø 30 mm), collapsible, comes in cardboard case, h = 54 mm (when opened)
Plastic thread counter
from 9,50 €
single piece plastic frame that is offset at a right angle to the glass (total length: ca. 160 mm; length of handle is ca. 90 mm), black, silicate glass lens, biconvex, diameter is 65 mm, triple magnification, 45 g...