Calibrated Glass Eye Dropper Caps for 1 oz/ 30 ml Bottle fits 20-400 Neck finish (Pack of 6)

Got these to replace a terrible pump cap that came in my dog’s medicine and they work great. Sometimes you have to work to get the dropper to fill to 1 ml, but they are so much better than what I had. They are glad and the measurements are marked and etched on the side so they don’t rub off (a problem I had with a plastic version). I would recommend these but do use care if choosing for a dog - they won’t know they’re glass and may bite down a little.

I used them to replace a couple of unmarked droppers on medicine bottles. They fit the bottles perfectly and it made getting the correct dosage much easier,

I bought them to use for CBD oil for my dogs. They serve the purpose well.

I'm using these to measure flavor extracts for my morning coffee. That and some artificial sweetener drops is a good substitute for syrups I can't find in a sugar free format. Half of a milliliter works perfectly.

Quality seems good but buyer beware - these have a specific neck size. Doesn’t work with any bottles I have.

Nice design, looks great, but the bulb does not have enough suction to draw liquid (water) through the full column. It's a 0.5 ml to 0.6 ml dropper, not a full 1.0 ml.

perfect

Excellent bottle and dropper.