here is a plastic hose clamp, the photo is terrible because my batteries on my camera are too low after the last pic to get a photo with a flash. at any rate, the plastic clamp is shaped more like the letter "C" with teeth on one end and notches on the other end to accept the teeth, kinda like a zip tie works. hard to explain, but if you ask for a locking plastic hose clamp at any place that sells pipe and hoses they will be able to get ya one for like 30 cents.