There are a total of 187 A5 size 3cm cardboard boxes. Suitable for Yu-Packet, Click Post, standard-size non-standard mail, and Yu-Packet Post. Ideal for small items and accessories. Dimensions: Length x Width x Height (mm) Outer dimensions: 235 x 170 x 29 White exterior, brown interior. Approximately 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, and other platforms.