Uni-ball UBR-300 0.5mm black ink refill 2-piece set - Brand: uni-ball - Model: UBR-300 - Size: 0.5mm - Color: Black One piece has been opened. The condition of the others is unknown as they are unopened. The outer packaging has deteriorated. Please understand that this is a long-term storage item before purchasing. Please note the following: - I am not currently considering selling individual pieces. - Simple packaging, reuse of packing materials. - Possibility of changing the shipping method (Yu-packet Post → Rakuraku Bin) (Rakuraku Bin → Yu-packet Post)