TAKEBEST Bike Lock 12mm Heavy Duty Portable Bicycle Disc Lock, Mountain Bike Locks, Mini Locks, Bicycle Locks That can be Connected Between Locks and Locks, Suitable for All Types of Bicycles

I bought two each of the yellow and blue. The yellow, thankfully, is a more normal yellow than the mustard shown online here.12mm is very small - about the circumference of a large grapefruit or softball. I should have got a bigger version.All (4) that I bought were keyed different to each other, which is probably a good sign they're serious about security. However for my purposes I would have liked keyed-alike, and I recommend the manufacturer offer 4-packs or 2-packs that are keyed alike.

I love this bike lock. I use it to secure my umbrella stroller (folded up) to a street sign so I won't have to haul it up and down my stairs. I don't know how sturdy it is but I use it mainly so people will see that the stroller is not up for grabs. I misread the dimensions (my bad). It's not 9 inches diameter but 9 centimeters so it's a tight squeeze. But it fits and in fact I like that it fits snug to the street sign. I also like that it isn't heavy or bulky. It comes in some nice colors but I got the black mat to make it unobtrusive. I would buy it again. It seems to be a new item so I think I went shopping for a bike lock at the right time. This one is perfect.

Bought two of these, one works great... the other one won't unlock. Tried both keys and nothing. Going to have to find a cutter to get the d@mn thing off.DO NOT BUY

This is super light, would use in places only you would trust for a quick stop. Nothing over night or in a high crime area!

Bought this for my Daughter so she will feel safe when leaving it outside her friends house. Easy to carry and very strong and dependable. Price was right and lots of colors to choose from.

Smaller than expected, but it does the job after I fight with it to put on because of its size.

Would I use this lock to protect very valuable items, no! But as a realistic deterrent this works.

I wish I'd followed other reviewer's advice and bought more than one. One just isn't big enough.

Its a good quality lock the only issue it’s a bit on the small side, I use the lock round the front suspension fork and it locks the bike up ok, The frame on my mountain bike is quite thick the lock is to small to go round the frame and cycle bar, pleased with purchase would buy again,

This bike lock is far to small for an adult sized bike. I can't use use it, and sense purchased a larger bike lock for my bike.

Solid but a bit too small for 5 stars.Does the job tho. I use it for locking bike when in shed but if out and about I use a larger gold standard lock.

Love this little lock - wouldnt leave bike unattended for long periods with it, but just to pop into shops etc it’s perfect.

Ideal for putting in your Rucksack and using when you stop for a well earned Cafe or Pub Stop.