Platform aircraft weighing kit specifications: Platforms are 12 inches wide, 16 inches long, 2.75 inches tall. Ramps are 30 inches long for easy pull up. Ramps are cast aluminum, platforms are billet 6061 aircraft aluminum. Unit is wireless with hand held transceiver. Wireless operation capable up to 300 feet. Platforms pack up weight is 34 lbs each Ramps pack up as a bundle and weigh 88 lbs for the set of three. Platforms are capable of up to 10,000 lb each Units are calibrated by the OEM with NIST traceable calibration. System is ready to use out of the box.