These are invaluable when you are trying to tie knots or tie flies. They flip up when you don't need them and can be swung down when you do. These magnifiers can be purchased in a range of magnifications - you choose which one best suits you.
MAGNIFYING GLASSES Flip Up Attaches to Glasses Light Weight Well Made Comes with Case Available in Either +1 +1.5 +2 sold out
+2.5 sold out Magnification
APPLICATION Great for all close up work particularly fishing and fly tying, the unit easily attaches to fishing glasses or other spectacles.