3M™ Steri Drape™ Sterile Isolation Surgical Drape, 20 x 20 Inch, 1 Box of 10 Syringes The filtered units have a MSHQ MENM375 The filtered units have a bacterial viral filtration efficiency of 99 25 FOOT PATIENT ROLL * Heavy Blue * An excellent tool for hand rehabilitation * Available in seven levels of resistance * Made of natural rubber * Thera band colors increasing in difficulty through seven levels from tan to silver * The color coding system provides positive reinforcement and feedback for gauging results * Film is durable and resistant to fluid strike through to keep contents secure Translucent plastic film allows for visualization of contents