The United States Postal Service opened Rudolph's Express Shipping Shack at Honolulu's main post office Monday.

The Post Office is located near Daniel K. Inouye International Airport.

The self-serve station in the lobby allows customers to drop five flat rate boxes or less and purchase stamps without having to wait in line inside the store.

This year, the shack will stay open later than in the past past. It's open weekdays until December 20 from 10 a.m. to 8 p.m. and Saturdays from 10 a.m. until 4 p.m.