Provides good tactual feel, are made of flexible and soft plastic, easy to use
Blocks splashes of blood and specimen when removing caps; particularly helpful when high pressure builds inside tube due to elevation, air-mail of specimens, etc.
Minimizes splash when breaking open ampules and glass breakage doesn't rip gloves
Vertical ridges on the outside and fine grooves on the inside control removal of the cap; adaptable to various tube sizes
Improves personal safety when removing stoppers from tubes / specimens or breaking open ampules. Minimizes cross-contamination as gloved hands touch equipment, keyboards, switches, etc.