2 x Bicycle Lock: 1 x a + 1 x b 1.Easily to lock helmet, saddle, wheels and luggage and more 2.Weight-saving design, easy to carry. If any problem, please to contact us! 3.Code lock, never worry to lose the key 4.Easy to operate and be applied for many cases Product features: novel shape, small and portable, soft PVC plastic coated, soft and comfortable. Four-digit password, safe and convenient, 10,000 kinds of arrangement, password security is more secure (initial password: 0000) High-strength zinc alloy lock head, sturdy and , safe anti-theft, anti- and anti-rust. Size: stretched length: 2.6x1000mm Specifications: Name: Ring lock Lock cylinder: alloy lock cylinder Inner diameter: 10.5cm, 11cm Colour: black Material: zinc alloy/ zinc alloy + PVC Package Contents: 2 x Bicycle Lock Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.