Lucite Cylinder 2.5

All high tech cylinders are of cast clear lucite and come in ten different sizes to fit your individual measurements. All high expansion cylinders are of cast, clear lucite individually handmade to your measurements. Each is flared outward at the bottom and has a slight inward roll at the opening which acts as a built-0in cockring and comfortable vacuum seal without messay gaskets. Each cylinder contains a state-of-the-art connector/air valve. It allows the pump to be disconnected from the expansion cylinder while maintaining the exact pressure you choose. All cylinders are equipped with a growth indicator, which can mark your daily progress.