Clinical Electrotherapy - Richmar, EVO Series Accessory, Autogel Ultrasound Gel Pads, Box of 50 : The AutoSound AutoGel Pads are an accessory to EVO series. Used for both the Therasound and Winner EVO Combo devices, it delivers the correct amount of gel thickness for superior coupling during treatment. Perfectly sized for the AutoSound Hands-Free Ultrasound, the pads maximize uniform ultrasound distribution while eliminating the messy set-up and clean-up required with traditional ultrasound treatments. Inside the box are 50 individually sealed AutoGel Pads.