The Air Burst(tm) Rocket system has a 26" tall, air-powered tri-pod launcher made of plastic and rigid foam. A 65" long air hose connects it to any stand-up bike pump. After a few pumps, the air pressure bursts a replaceable booster disc in the launcher and sends a 10" x 3/4" dia rocket 250 to 1000 feet into the air. Wow! The system includes the launcher, (2) rockets, and (60) boosters (two different weights). Sending rockets out of sight, even if they usually come straight back down, is an ingenuous ploy for selling extra rockets. Our each is a pack of (2). And having extra rockets is an ingenuous ploy for selling extra booster discs. Our each is another bag of (60). No bicycle pump? The 18" black Tech Team pump blew majestically through a "double bozon" booster for us! It creates up to 120 lbs of pressure while most pumps will only generate 80 psi. It fits a Schrader (American) valve. Warning: The Air Burst(tm) Rocket is for ages 10 and up, with adult supervision. Don"t let us catch you out there without a kid!,This is Philip"s new favorite toy, since he blasted a rocket so high over our parking lot that he lost sight of it (the rocket, not the parking lot). The Air Burst(tm) Rocket system has a 26" tall, air-powered tri-pod launcher made of plastic and rigid foam. A 65" long air hose connects it to any stand-up bike pump (NOT INCLUDED). After a few pumps, the air pressure bursts a replaceable booster disc in the launcher and sends a 10" x 3/4" dia rocket 250 to 1000 feet into the air. Wow! The system includes the launcher, (2) rockets, and (60) boosters (two different weights). Sending rockets out of sight, even if they usually come straight back downWarning: The Air Burst(tm) Rocket is for ages 10 and up, with adult supervision. Don"t let us catch you out there without a kid!