Have a blast, literally, with our Charlies Water & Soda KABOOM Combo Pack! Use these KABOOM exploding bottle caps to inflate old 2 liter, soda, or water bottles, aim, and blast away. Inflating empty soda and water bottles to 60-65Psi gives you the most explosive KABOOM potential. Key Features Each bottle cap can be reused up to 10 times each Comes with 5 cola caps, 5 water bottle caps, and an instruction card Fill empty bottles with powder, liquid, or dust for added visual effects Tie cap to a nearby object to prevent losing the cap after each KABOOM Get a BIG Blast with our Charlies Water & Soda KABOOM Combo Pack! Order yours today! Easy Instructions 1) INFLATE - Use a hand or electric pump to inflate and pressurize the bottle. 2) SHOOT- Shoot the bottle with any firearm, bow, or pellet gun. We recommend adding powder, liquid, or dust to make an explosive visual effect. 3) RE-USE- To prevent losing the cap, tie the cap to another object nearby. Re-use