TOTE Oxygen Tank Carrier fits M6 Cylinder for Wheeled Walker Convalescent Care 25 cm) * Depth: Open: Style:1 Pair (Left & Right) 25 cm) * Depth: Open: 24 (61 cm) Ultrasonic Pocket Doppler * Easy to use * Compact design * Interchangeable waterproof probe (sold separately) * Built in audio recorder * Large backlight LCD display * Accurate FHR detection with high fidelity sound effect * Support waterproof probes for both obstetrical and vascular usage * Auto Average and Manual working modes * Various power supply solutions * Automatic power off to save power * 9V alkaline battery Patent #6 672 321 * Carrier for M6 cylinder * Oxygen Cylinder Holder increased mobility and freedom for individuals who are required to use oxygen and a wheeled walker * Secures to the walker with 2 hook and loop fasteners and a safety buckle strap at the top and a centering strap near the bottom of the walker * Convenient pocket for the wrench * Manufactured and sold under U