HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3 Magnification_10X This really is the largest

This really is the largest possible strongest possible loupe with the highest quality triplet lens (even allowing for the "useable" area of the lens)

it means you need a new pen-probe

Four AAA batteries (supplied)

This is subject to inspection and approval in the USA

HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3 Magnification_10X This really is the largestSummary Set of ten hardness testers. 8 hardness picks ("pencils") from No. 2 to No. 9. 1 Glass plate (hardness 5. 5) 1 Brass plate (hardness 3. 5) Also 1 streak plate (to test a mineral's streak colour) 1 magnet 1 polishing stone to keep the tips sharp Each 'pencil' has a tip of a different hardness from No. 5 to No. 9 on the Moe scale of hardness (see 'Further Information'). Is it easy to use? Yes. See which will scratch your sample and which will