My kids love to play in my lab, but they shouldn't! However, playing in the bathtub is an awesome idea. I have collected bathtub appropriate REAL LABORATORY EQUIPMENT and put it into a hanging mesh bag. It is made of polypropylene, so it can be thrown around and won't break easily- perfect for the tub. The package comes with a graduated cylinder (100ml), 3 beakers (250ml, 100ml, 50ml), a syringe (10ml), a funnel, a dripper, a mesh bag to drip dry the equipment, and a suction cup with a hook to hang the bag on the bathtub wall. I hope you all enjoy this as much as I do with my kids! Safety note: As with most bathtub activities, don't leave the kids unattended. There are small parts so it is intended for kids 6 and up.