Durable mixed material (PC + ABS) body and aluminum frame Cushioned double casters Stable running with double casters (8 wheels total) and the cushioning function of the springs for amazing quietness The TS lock is a convenient specification that allows you to check your luggage with the lock on at most airports around the world. *The name has been changed from TSA lock, but there is no change in function. - Color: Silver - Lock type: TSA lock - Wheel type: 4-wheel casters - Material: (PC + ABS) body and aluminum frame - Handle type: Telescopic handle Thank you for viewing.