This is a TOSHIBA SL-1A 52mm filter. Size: Diameter 49mm I purchased this filter new at the same time as the lens. Overall, the filter is in good condition with no scratches or dirt. The case is not included, so it will be carefully packaged for shipping. Please consider purchasing this item with the understanding of the above condition. Regarding purchase: Please make your decision based on the photos and the above description. In some cases, there may be omissions in the photos or insufficient explanations. Please refrain from purchasing if you are seeking perfection or are concerned about minute details. Returns are not accepted, so please make your decision carefully. Thank you.