This is an Auvray lock which could be used on a bike. It is a padlock with keys and a 120cm cord so that it can easily be wrapped around things to secure the bike in place. The padlock on it is 65 x 90 mm and has two keys with it. The chain has a fabric cover which means that it will protect your bike form any scratches or dents which might otherwise occur should an exposed chain be wrapped around it. It is therefore a great choice to be used on a bike as you do not want the paintwork to be damaged by a chain but you need to keep it safe and secure.