Quick Answer
ゆうパケットポスト (Yu-Packet Post) is a Japan Post service that lets you drop any flat item into a regular street mailbox for ¥215. It requires purchasing a special sticker (専用シール) and is only available through Mercari, offering anonymous tracked delivery.
Yu-Packet Post (ゆうパケットポスト)
ゆうパケットポスト · Yuupacket Posuto
Price, Size & Weight
| Item | Details |
|---|---|
| Price | ¥215 + ¥5 for special sticker (専用シール) |
| Max Size | 32.7cm × 22.8cm × 3cm (standard) or use dedicated box |
| Max Weight | 2kg |
| Delivery Time | 1–3 business days |
Features
✅
Tracking
❌ (no compensation if lost)
Insurance
✅
Anonymous
Drop-off: ANY mailbox (ポスト), post office, Mercari Post smart locker
How to Ship — Step by Step
- 1Buy the ゆうパケットポスト special sticker (¥5) from a convenience store or post office.
- 2Open Mercari and select ゆうゆうメルカリ便 for your shipping method.
- 3Scan the barcode on the sticker using the Mercari app to register the shipment.
- 4Pack your item, stick the sticker on the package, and seal it.
- 5Drop it in any street mailbox (ポスト) or bring to post office.
- 6Mark as shipped in Mercari. Tracking starts once Japan Post scans it.
Best For
- ✅ Small flat items you want to ship without going to a convenience store
- ✅ Items that fit in a standard envelope
- ✅ Sellers near a mailbox but far from a konbini
When NOT to Use This
- ❌ Items over 3cm thick
- ❌ Items over 2kg
- ❌ Anything valuable (no insurance)
FAQ
Q: Where do I buy the special sticker?
The ゆうパケットポスト専用シール costs ¥5 and is sold at post offices and some convenience stores. Check Japan Post's website for the nearest location.
Q: Is there a dedicated box option?
Yes. Japan Post sells a dedicated ゆうパケットポスト box that is slightly larger. It also requires the sticker.
Q: What if my item gets lost?
ゆうパケットポスト does not have loss insurance. However, Mercari's buyer/seller protection still applies. Avoid using this for high-value items.