The Sharps Disposal By Mail System® PRO TEC® Mailback Sharps Collector, 2 Gallon, 11 x 6 x 9 Inch, 1 Each CPR Face Shields Convertible chestpiece provides adult diaphragm bell 14283 Convertible chestpiece provides adult diaphragm bell or adult pediatric diaphragm configurations Combination diaphragm bell adult chestpiece precisely machined to exacting tolerances from surgical stainless steel for outstanding performance and rugged durability ADC When you are out of the preset zones the training computer will give a visual and audible alarm * HRmax (user set) * Manual target zone : bpm % * This feature enables you to define the target zone as you want and is suitable for your training Capacity: 3cc syringes 250 270 or 1cc syringes 440 460 a government approved return by mail system and instructions for use