I have transparent plastic bottles, not colored silicone version. Just received the bottle and tested it, definitely not airtight but seems fine with hand sanitizer gel. The lack of airtightness means that the gel will dry out over time if left unused for a long time and I wouldn't trust it with any liquid. If you use the sanitizing gel frequently and refill frequently, this will work. Concerned that the bottle will have faint lines of stress from squeezing multiple times (see photo), not sure if this is a surface or integrity defect. The bottles might be ok but the straps are (a big part of why I got these bottles). others) do not work. The plastic strap with snaps is unbalanced and doesn't close as it is. I was able to heat it up and extend it to hold a bottle, but the bigger issue was the retractable keychain. In the background of the photo you can see that the lanyard is fully extended - it will not come back. I've checked another one to make sure it's ok and if I'm missing something, but this key fob is simply defective. This one would be a good option for carrying gel hand sanitizer if it had a lower marriage rate - I'll see if I can trade it in. I hope next time there will be a better batch.
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