?This is a nice device. The handle is silicone and has a nice grip. There are 3 speeds. It comes with two heads that are the same except for the color, so the device can be used by 2 people. It has a nice, bright light so you can see well. The heads vibrate and are made with a rubbery material so they will not poke your gums. The directions say to place it at a 45 degree angle at the gum line to remove plaques, and place it at 90 degrees to the tooth if you want to polish each tooth. It is rechargeable so there is no need for batteries. It even comes with a nice, sturdy case for travel or storage. I love the extra three dental tools it comes with. With all this equipment, a person can get their teeth very clean!