These are glasses with a blue light cut function. They have a square frame and a calm brown color. They reduce eye strain when working on a PC or using a smartphone. [Product Condition] The yellow or blue tint is not a defect; it's simply a strong blue light cut. [Color] Brown Thank you for your interest. I wore these once, but the strong blue light cut made the yellow tint too strong for me, so I'm selling them. I purchased them online (not from a discount shop). Reference price: 4890 yen. The frame is firm. A glasses cleaning cloth is included. ✅ Used item (Please check the condition in the photos) As this is a used item, there may be signs of use and minor scratches. I store the items at home, and I have posted photos to the best of my ability, but there may be oversights due to my amateur inspection. I cannot respond to minor details, so please consider purchasing with this in mind. ✅ Immediate purchase OK I will take waterproof measures and carefully pack and ship the item. (Simple packaging may be used depending on the item) This product will be shipped after taking measures to prevent product substitution. I will consider price reductions (for items over 1000 yen) within a reasonable range. Returns and cancellations due to the buyer's circumstances are not accepted. ✅ I will primarily respond to comments in the evening. Silent purchases are also welcome, but in that case, I will refrain from sending confirmation messages, so I may not be able to handle returns. I cannot accommodate requests after purchase without prior questions, so please be sure to ask any questions before purchasing. I adhere to the scheduled shipping date, but if you cannot respond to urgent messages within 24 hours, I may cancel the transaction because I deem it difficult to continue.