The Aquapod is the most exciting and safest bottle rocket launcher ever. It's 100% assembled and all you need is a ordinary bike pump and a 2 litre plastic soft-drink bottle with a bit of water in it. Not only does the Aquapod launch a bottle up to 100 feet in the air, but no other launcher out there has a built-in safety valve that releases pressure at 60psi in order to keep everyone safe from over-pressurizing the launcher. The Aquapod is built to last with high quality durable plastic. Prepare for a massive blast-off!