The Columbia Cam Lock Tube is so simple and so positive we would not recommend using any other tube when it comes to fast set compounds. The brass cams easily find and lock to the stainless ring using the same technology as a firehose. Brass cams on a stainless steel lock ring.Quick remove bottom for complete cleaning. Machined in our state of the art facility in Canada. This item is in the category "Business & Industrial\Facility Maintenance & Safety\Access Control Equipment\Locks\Other Locks". The seller is "csr_building" and is located in this country: CA. This item can be shipped to Canada, all countries in Europe, United States, Australia.