This compact scale weighs bags up to 75 lbs. and locks at the correct weight for easy reading. Twist to reset to zero. Integrated tape measure can be used to check overall dimensions. Features avoid excessive baggage charges Integrated tape measure for checking bag dimensions just hang your bag from the hook to use dial stops and locks at weight for easy reading weighs up to 75 lbs. measures 4 x 3 x 1.5 inch.