Milk Bottle Cap TPU

One of my first designs I release was this Milk Bottle Cap https://www.thingiverse.com/thing:4552180

We had just started having glass bottled milk in the UK. I made them out of PLA and they worked OK but after a 3/4 months they would break.

I started printing with some TPU for another project and printed a couple of caps. But the design needed tweaking.

So here is the new design.

Please let me have any feed back.