Mrbeast Lab Swarms S2 Tubo de Ensaio 2 Embalagem 12 Peças A

The chaotic science lab theme makes this set feel way more exciting than a standard two-pack, and my kid was instantly hooked on the fizzy bubble effect. Having two test tubes in the pack meant the siblings could race their swarms without fighting over who goes first.

My kids couldn't stop laughing when the bubbles started fizzing and the test tubes lit up—the chaos is exactly what the description promised. The two-pack gave them enough to trade and battle, and the whole setup feels way sturdier than I expected for the price.

Pulling the test tubes out of the package felt like starting a real experiment, and the bubbling reaction when we activated them was way more dramatic than I expected. Both tubes worked perfectly right out of the box, no fussing needed.