Limited-time price until 12/15 A5 size 3cm cardboard boxes, a total of 187 sheets. Suitable for Yu-Packet, Click Post packaging, standard-size non-standard mail, and Yu-Packet Post small items. Length x Width x Height Unit: mm Outer dimensions: 235 x 170 x 29 White front, brown back, approx. 57g The height of the box (outer dimensions) is within 3cm. These cardboard boxes are the perfect size for shipping via Japan Post's Yu-Packet, Click Post, and standard-size non-standard mail services. Also useful for online sales on Mercari, Yahoo! Auctions, PayPay Flea Market, Rakuma, etc.