Multi-tool (for home/car) with a foldable design, compact construction, portable but without a carrying case. Its main tools are screwdriver bits and sockets. Their socket locks in three different positions, providing increased torque for rotation, which is extremely useful when facing difficulties in screwing or unscrewing. It also has a knife, saw, and file, which also lock (the knife needs sharpening, the saw is good). I have it in the car, in the passenger's glove compartment, and it has already proven to be very useful to me.