When normal locks or padlocks are not long enough you may need a security cable lock that will fit around most bikes and prams, etc. This is an easy way to protect your bike or pram from being stolen. For a more robust solution you might want to try a security chain and padlock. Nylon-clad chain which is great for motorbikes, mopeds, scooters, etc. Or use it for locking other objects too. Choose a model and level of security you require depending on what you want to use the lock for.