Liquid Lab Flask

My toddler loves watching the colored water swirl inside this flask during science time. The glass is sturdy enough for small hands.

The wide mouth makes it so easy to pour liquids back and forth without spills—perfect for my little scientist. My toddler loves watching the colored water swirl as we mix new batches. A simple, well-made piece that’s held up to daily use.

My toddler loves pouring water back and forth with this flask, and the wide opening makes it easy for her little hands to fill and clean. It’s held up to daily drops on our tile floor without a crack.

The graduated markings on the side make it easy to measure out exact amounts for mixing colored water, and the thick glass feels sturdy enough for little hands. My toddler loves watching the liquid levels change as we pour.

We use ours for water play and the glass is thick enough to survive a few drops on the tile floor. It’s the perfect size for little hands to pour and mix without spilling everywhere.

The opening is just wide enough for my toddler to pour in rice without spilling, and the glass feels sturdy enough to survive a few drops. This replacement flask fit perfectly and has already sparked lots of pretend chemistry experiments.

My four-year-old loves pouring water back and forth between the measuring cups, and the flask's wide mouth makes it easy for her little hands to fill without spilling everywhere. It's held up well to daily use and fits perfectly with the other lab pieces we already have.

I was pleasantly surprised by how well the ground glass joint fits—no wobble at all. The 250ml markings are etched clearly, making measuring easy. Great for small batch distillations.

The glass is thick enough to survive my clumsy lab bench setup, and the markings are etched on so they won't fade. Boiling water goes in and out without any fogging or cracking issues.

I needed a flask that could handle both mixing and measuring, and the graduated markings on this one are clear and accurate down to the milliliter. The borosilicate glass feels sturdy in my hand, and it’s held up fine to hot liquids so far.