DescriptionOur product is made of premium silicone material, and is durable and soft. Press the grip directly to control the back of the adult , and control the force. Perfect for adults , elderly, patients with apoplectic hemiplegia, for helping secretion or phlegm come out easily.Features-Color: Green -Material: Silicone -Size: About8.00X5.00X5.00cm/ 3.14X1.97X1.97inch -Size: About10.00X6.00X6.00cm/ 3.93X2.36X2.36inch -Hollow arc, uniform stress, in line with ergonomics, deep vibration, easy to burp.-Drum pressure beat burp, rapid exhaust, produce drum pressure, promote exhaust.-Convex grip can promote rapid exhaust, and air vibration will be produced when slapping, which can promote rapid exhaust.-Press the grip to control the back of the adult, and control the force.-An item for helping secretion or phlegm come out easily. Perfect for elderly, patients with apoplectic hemiplegia.