Product Specification Brand: ROCKBROS Material: zinc alloy, ABS, stainless steel Weight: approx. 519 grams Length: approx. 70 cm Anti-theft rating: 12 The lock is foldable and easy to carry. The lock looks like a Rubik's cube. Unique and interesting shape. Can be placed on the seat tube to save space. Embedded rivets and h anti-drilg lock cyder help to improve the security of your bike. Compact and portable This lock is small enough to fit in your saddle bag. You can also mount it on the seat tube. Superior Material The ABS housing prevents scratches to the paintwork, the zinc alloy body improves anti-theft properties, and the stainless steel connection improves cut resistance. Extended lock body The lock body can be extended to fit multiple bikes. You can also easily lock the seatpost and wheel together.