CONTAINER, SPCMN 90ML STR DUO CLICK BLU CAP (100/BG 4BG/CS) DuoClick™ containers ensure safe transport of specimen Once the specimen is collected, a simple turn of the closure will give the user assurance that the seal is fully engaged with an audible click The second click ensures 95 kPa compliance for pneumatic tube transport Made of 100% virgin grade polypropylene Sterile tab label