PhenoMINT 咔嗒球，綠色（夜光）

The glow-in-the-dark effect is the real star here—my kids charge them under a lamp for a minute and they light up the whole hallway after lights out. It’s a clever little physics demo that keeps them entertained for way longer than I expected.

These glow-in-the-dark balls are even more fun than I expected – the way they click and clack together really does show off some cool physics. I left them near a window for a few minutes and was surprised how brightly they lit up the room once I turned off the lights.

The click-clack sound is satisfying, and the glow effect is surprisingly bright after just a short charge. My only small gripe is the plastic feels a bit lighter than I expected, but they still work great for demonstrating momentum.