It is a PL filter for eye viewing like a magnifying glass that can quickly check the PL effect at the shooting site.You can check the effect of the filter before shooting.PL checker V (II) has become more affordable than conventional products.Since it is a convenient scale to confirm the PL effect, it is easy to determine the effective rotation angle position of the PL by using it with the Circular PL (W) vernier filter (sold separately).A convenient neck strap is included for the mobile phone.● Inner diameter (PL part): 46mm ● outer diameter: 57mm ● Pattern: 51mm- asbestos non -containing ROHS Directive J-Moss Environmental Self -assertion mark Other environments and safety standards Radio Law Reference Because the strength of the electric field is not eligible Telecommunications Business Law Because it does not connect to a public line Electrical Equipment Safety Law Remarks Because it does not directly connect to the power supply Radio Law non -target Telecommunications Business Law non -target Electrical Appliance Safety Law non -target Legal Related Confirmation Date 2012418