The handle on my freezer basket broke, this is a replacement (white one in the picture).
16cm long by default.
Print in PETG, as it needs a little flex to get over the edges. PLA won't flex and will break (it needs to be a relatively snug fit to stay in place).
Print standing up. I had no issue with default tree supports.
Lifting of the basket in and out hasn't resulted in any breaks thus far, so I don't see the need to increase the infill beyond 25% (will update if necessary). I've also included a draft-mode profile so you can prototype based on this for your own freezer.
The author marked this model as their own original creation.