ABUS Armoured Cable Lock Steel-O-Flex Tresorflex 6615C, 85 cm, Black

Good sturdy lock. I use mine outside on a gate. No jamming.

Seems sturdy and well made, obviously not easy to break but not impossible either. The attachment that comes as an accessory is great and can be fitted in multiple positions.

It's a medium-thickness lock. Depending on what you want to secure, it may be suitable. It opens with a combination. Suitable for children. This model has a mount to carry it on a bike. There are thicker ones, but they're also heavier.

solid lock that should deter some theft - it took me a while to figure out how to set the numbers. There is a piece of plastic that needs to be pushed but that's a bit tricky and I finally used a flathead screwdriver to depress them After that it operates smoothly ... just don't forget that number.