The diameter of the 100 leaf is 4 inches = 100mm, 4.5 inches = 115mm, 5 inches = 125mm, 6 inches = 150mm, 7 inches = 180mm. These are the standard particle size numbers for the 100 leaf. The price is uniform.

Cutting disc sanding disc specifications
4寸的分几个厚度 105*1*16 105*1.2*16 100*3*16 100*6*16" Translation: "What are the thicknesses of 4-inch sizes? 105*1*16, 105*1.2*16, 100*3*16, 100*6*16.
4.5 inch is available in several thicknesses: 115*1.2*22.2, 115*3*22.2, 115*6*22.2, and 115*1.6*22.2.
"5寸分几个厚度 125*1*22.2 125*1.2*22.2 125*3*22.2" This translation is not accurate. Please provide the correct Chinese text for translation.
"7寸分几个厚度 180*1.8*22.2 180*2*22.2 180*3*22.2" This translation is not accurate. Please provide the correct Chinese text for translation.
9 inches can be divided into several thicknesses: 230*1.8*22.2, 230*2*22.2, and 230*3.2*22. The holes can be divided into cymbal shape and parallel shape.
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There are several types of large cutting discs: 12 inches = 300*3.2*25.4, 14 inches = 350*3.2*25.4, and 16 inches = 400*3.2*25.4 (these are available in single mesh and double mesh).