ZIEIS | 30 Lb. Capacity | Digital Postal Scale | ZIEIS BigTop 16" x 12" Dura Platform | Z-SEAL | 110V Adapter | 0.1 Ounce Accuracy Overall Dimensions: 16" x 13.5" x 3.3" (41cm x 34cm x 8cm) with 16" x 12" (41cm x 30cm) platform ISO 9001:2000 certification ensures exceptional quality and extreme reliability Programmable Options: Hold (Auto/Manual) and Power (Auto Off/Always On)  Customize to your needs Power: 110V adapter (included) or 6 x AA batteries (not included) This ZIEIS digital postal scale features a ten (10) year manufacturer warranty