MI-7975 stylish cart has one platform that can be set at different heights easily with the internal gas spring mechanism. The platform has slot for tablets or smartphones, so you can view and use multiple devices at the same time. The base is sturdy and keeps your equipment secure while you move from room to room.MI-7975 can hold up to 17.6 lbs and has a 28" x 19.7" platformGas spring easily adjusts the platform up and down from 29.9" to 47.6"Large, locking casters allow for ease of movement and stability, when neededBuilt-in tablet slot fits most tablets and smartphones, and has three holes for charging cablesGreat all-purpose A/V cart works on most surfaces and can be used in medical, education, hotel, home, and other environments