液態泡泡計時器

The bubbles move so slowly and smoothly, my toddler just sits and watches them for ages. It's simple but really engaging, and the timer effect adds a cool visual element to his play.

It's been surprisingly useful for calming down before bed, the bubbles really do move at a perfect slow pace. My kids fight over whose turn it is to flip it over.

My toddler won't stop staring at the slow-falling bubbles inside, and it actually keeps him calm during diaper changes. The way the colored liquid floats down is surprisingly soothing for me too.