

First introduced in 2001, our patented PRO ONE™ line of reversible closures and accompanying vials incorporate all of the advantages our customers have come to expect from TSD's products. Our unique design incorporates a one piece, dual purpose reversible cap that uses the industry's tested, proven "push down and turn" mechanism for the child resistant mode. To convert the package to an easy open, non-child resistant operation, just turn the cap over and screw the cap back onto the mouth of the vial.
Here are the advantages you'll enjoy with this system:
All in all, the PRO ONE™ series gives you and your customers packaging that is convenient, versatile, safe, user friendly, and meets all CPSC and USP performance requirements. Don't settle for less, either in quality or features and benefits. Go with the PRO ONE™ - number 1 in quality, performance, and savings!