A range of tubing is available from Noogleberry to purchase by the meter. The tubing is the connection between the hand pump and the cylinder of penis enlargement pumps or the cups of breast enlargement pumps. The tubing will fit most natural enlargement pump systems with nozzles between 4mm and 8mm, and both can be used with the Noogleberry Airlock. Medical grade silicone tubing is highly durable and of an extremely high quality. This product comes with a 1 year warranty but it should last much longer. Silicone tubing has a 4mm internal diameter and 1.5mm wall thickness. It can be used with a tubing clamp. PVC tubing is just as high quality but more rigid than silicone tubing. This means that it’s resistant to kinking but too hard to use with a tubing clamp. PVC tubing is slightly larger with a 6mm diameter and 2mm wall thickness. Natural enlargement systems are safe to use and our glowing testimonials show what great results can be achieved. Either buy the silicone or PVC tubing as spares for your pump system or build your own system using the individual components available from Noogleberry. The Noogleberry Airlock can be bought here in the “Airlocks & Clamps” section.