The Lightweight Silicone-Coated Bike Lock, Model Number Ottolock, Lock (Blue).

• More Convenient U-LOCK - From the makers of OTTOLOCK, the SIDEKICK brings innovation to the traditional U-Lock with a compact, lightweight design that effectively deters opportunity theft without weighing you down. Simple to use and to carry, the portable SIDEKICK easily fits in many backpacks, bags, or pockets.
• Lightweight Bike Lock - At only 750 grams (1.65 lbs), the SIDEKICK allows you to lock a single tube to a post or pole at a fraction of the weight of a traditional U-Lock. The opening measures 2.75” x 5.75” (7cm x 14.5cm). Each lock comes with 3 keys
• Protect Your Frame - The body of the SIDEKICK is coated in high quality silicone that won’t scratch or damage your bike frame. Made with double-shackle 12mm hardened steel and an antirotation deadbolt for security and durability.
• Versatile Security - Use the SIDEKICK on its own or with a secondary lock depending on the length of your stop and location.
• Easy-To-Use - The SIDEKICK comes with three keys, and the compact size and bright color options make it great for kids and new riders who want to protect their bikes.