Unlike conventional toothbrush sterilizers which could only be installed at a fixed spot, Usetool Toothbrush can be carried from home to office, and anywhere else using its portable cover. The toothbrush sterilizer is designed not only to sterilize but also to dry out the toothbrush, and it is designed to be hygienically manageable by separating the part where the toothbrush is inserted to be cleaned. At home, it can be placed on the magnetic cradle alongside three other brushes. The cradle has a clock function, and it times three minutes of tooth brushing when you touch the clock.