"Size: 55cm, Smooth Movement: 8 Silent 360° Spinner Wheels for smooth, noise-free movement. Strong & Safe: 150D Encryption Lining for added strength and secure storage. Secured Zip: An anti-theft zipper for enhanced security. Corner Protectors: Extra protection on corners to guard against bumps and impacts Smart Lock: 3-digit Combination lock for an extra layer of security. Convenient Side Handles: This roller suitcase comes with an integrated side handle, which makes lifting and carrying luggage easy."