For light items, you need a scale that measures in 0.1-ounce increments . Small differences in weight can jump you into a higher price bracket, especially with First-Class mail.
If you only mail letters and small padded envelopes, a 5–10 lb capacity scale is fine. If you ship heavy boxes or car parts, look for a "heavy-duty" model that goes up to 50 or 100 lbs. buy postal scale
This allows you to place an empty container on the scale, reset it to zero, and then weigh your item inside the container without including the container's weight. The Bottom Line For light items, you need a scale that measures in 0