The color scale (discoloration chart) is separated one by one from the 20 sheets included, so there is no need to carry the entire plastic case. Measurement range: 1.0 to 14.0
Measurement scale: 1.0-2.0-3.0-4.0-5.0-6.0 -7.0-8.0-9.0-10.0-12.0-14.0
10mm wide x 60mm long
20 sheets/book x 10 books
