Clear Line Zip Closure Bag, 13 X 18 Inch, 1 Case of 500 Relaxation Sound Systems A medical case that creates HERH6036TW A medical case that creates an excellent use of space and easy access to equipment * The Euro bags hinged out design allows the bag to open and close with ease * Features two large zipper interior pockets an anti bacterial lining double leather handles and brass key lock * Quantifies specific dB and frequency hearing loss with precision testing * Offers a full range of frequencies and intensity levels * Frequency modulated stimulus mode for reliable results with children and elderly patients * 13 Inches by 18 Inches with 2 Mil thickness are great for short term