PengLAI Seasoning Bottles Plastic Tomato Ketchup Bottle Cute Animal Cap Sauce Squeeze Bottle for Kitchen Lunch Box

So, there are ways to fill this - do not use the contraption that comes with it, it doesn't work. I tend to put the small bottle neck into the neck of a soy sauce bottle while holding both, squeeze the mini one and tip the soy sauce bottle and release the squeeze which tends to use the suction to fill it up. In terms of cleaning it , i do the same with water but it never fully dries.

My daughter loves these for balsamic vinegar glaze. She has turkey sandwiches for her school lunch and uses these to out the sauce on her sandwiches in school so they don't go soggy.The little pipette that came with them is absolutely useless. I've tried cutting the hole bigger but had to bin it as it wasn't working at all.Instead I just squeeze the bottles and hold them to the bottle top and release it so it sucks in the sauce.Cleaning is quite difficult as they never empty fully. I wash them and sterilise them once a week but they never fully dry inside.