72mm ND2-ND32 (1-5 Stop) Variable ND Filter and CPL Circular Polarizing Filter 2 in 1 for Camera Lens No X Spot Weather Sealed

SKU: KF01.1086

Q
I want to ask how do I know what strength the nd filter is set to? Do the four dots on the side represent nd2,4,8 and 16?
Answer Question
A
N4, N8, N16, N32