BosvisionUltra-Secure 4-digit Combination Lock with 3 Feet Retractable Cable for Bike, Ski, Snowboard and Stroller

It’s a nice compact, light unit and as I have the bright orange one, I’ll be using it mostly as a deterrent. However, I figured out how to work out the code within a minute so it’s not particularly safe.

Excellent quality and build

Easy use. Color good

Perfect for coffee stops and convenience shopping. At the very least, it's something of a deterrent against a 'Ride away'. Small and lightweight and easily fitted in a pocket or small bag.As other posters have said, certainly not something that would stop a determined thief but enough of a visual and physical lock to keep the bicycle falling prey to joyriders. (The toilet roll in the picture is only used as a visual guide to show the size of the lock).

This lock must only be used for short stops where your bike is not left out of sight for very long. It is a deterrent to opportunist thieves only. The lock is lightweight and smaller than a mobile phone so easily fit in the pocket. The code can be changed and I found this to be straightforward to do. Being bright orange means everyone can see your bike has been secured.

The device was lighter than I thought and it took me a long time to figure out how to use it. That’s mainly down to me being cack handed and I initially impressed something prematurely and the code didn’t set but fortunately we were able to back track and figure it out.I’ve now worked it all out and it does do the job but, as I said, it feels a little light weight and flimsy.It arrived promptly though. I’ll give it the benefit of the doubt…it does fit around three bikes comfortably

Reassuring (and for the price of a few coffees!) to lock your bike at coffee stops - vs others that dont. Where I often ride and stop after is a busy London park cafe; quite a few nice bikes have vanished from here over the years just being picked up and ridden away while owners chatter.Lite to carry, I dont even notice it.The lock itself is easy enough to use - just DONT FORGET the combination number you set! There are few buttons - to recoil the cable, to unlock, and another...just press away until your thing happens!Once unlocked and cable undone/retracted, you can turn the combo dials back to random numbers, and still lock again by pushing the shackle end in when you next stop (so your combo number can remain out of sight, until the next unlocking).The cable on this is long enough, a shorter on would provide a similar function for the purpose (not trying to capture wheels etc) but good to have the option in case locking around larger objects or a few bikes together.Yes pliers would chop the cable, but this is only designed to prevent opportunistic chancers walking off with stuff - I find highly reassuring, rather than constantly glancing up/over shoulder etc.

It works fine - easy to use.No substitute for a good quality U-lock, but ok for short stops when your bike remains in sight.If someone is determined to take your bike, this won't prevent them from doing so - but it might delay them long enough that you can stop them yourself.