McKesson NonSterile Gauze Sponge, 3 x 3 Inch, 1 Case of 4000 Backboard Straps s resistance *CanDo© is licensed Ships From:FL, USA s resistance *CanDo© is licensed to use the Thera Band© color sequence so resistance level is easily identified *Available in 8 levels of resistance for progressive exercise *Levels range in order of strength from least to greatest resistance: tan yellow red green blue black silver gold *Uniform width each band is 5 wide *Dimensions: 7 x 6 x 7 *Weight: 3 * A soft flexible dome that can be easily squeezed around the nose mouth and chin of the victim * A standard 15 mm port that can be used with bag mask resuscitation units or aerosol tubing * A compact mask valve with quick two piece assembly * Features elastic strap * Latex Free * Fully assembled ready to use * Features mask with O2 inlet one way valve filter head strap and gloves * One way valve and filter prevents backflow of air contaminants from patient to rescuer prepping and packing Nonsterile gauze sponge offers reduced linting properties