Quantum Gum is a gum in Bubble Gum Simulator. It can be obtained by purchasing the Infinite Size gamepass for 99999999999999 
. It has the highest capacity (infinite) of any gum. Also the most expensive you BIG NOOB
Trivia
- This grants the user a sell button, allowing the user to instantly sell their bubble at any time.
- If you press the sell button in any world that does not have a sell area, you will be teleported to the one in the Starter Area, but the ground won't be loaded and you will fall under the map. This can be avoided by pressing "sell" again.
- This is one of the only 5 gums that doesn't have the word "gum" on the decal, the others being Experiment 54, Experiment 32, Radioactive Gum, VIP Gum, and Alien Gum.
- This is one of only two gums that can be purchased outside the Gum Stores. The other is VIP Gum. They are both packaged with gamepasses.