An extremely handy A5 Fresnel magnifying sheet that you can carry with you anwhere. Ideal for map reading, large areas of print, viewing photographs, etc. Much more practical for the above mentioned than the small round magnifying glasses. If used for map reading or book reading it can also double up as a bookmark. Extremely lightweight so can be taken anywhere and dimensions are approx. 180 x 120 x 0.4mm.
eBay