Outdoor Step 3M Littmann WA Steths Navy Blue 27 * The 416700 Navy Blue 27 * The ultimate acoustical stethoscope * Tunable diaphragm conveniently alternates between low and high frequency sounds without the need to turn over the chestpiece * Handcrafted sold stainless steel chestpiece * 2 in 1 tube design eliminates tube rubbing noise * Portable convenience of a single sided chestpiece * Excellent acoustic seal and comfortable fit with patented Littmann Snap Tight soft sealing eartips * Comfortably angled anatomically correct headset * Patient friendly nonchill rim and diaphragm * Plastic arms provide added comfort Step securely into your doorway * Large platform makes it easy for those with limited ability to lift their feet to remain steady * Use indoors or out * Non slip rubber mat * Adds 4 extra inches to your step * Ideal for home cars trucks RVs boats etc * Weather resistant * Supports up to 440 lbs * 19¨ x 15´ *