A claw crane, claw machine, toy crane, or skill crane is a type of arcade game known as a merchandiser, commonly found in video arcades, supermarkets, restaurants, movie theaters, shopping malls, and bowling alleys. Machine components A claw crane consists of many parts, but the basic components are a printed circuit board (PCB), power supply, currency detector, credit/timer display, joystick, wiring harness / loom, gantry assembly, coil, and claw assembly. The claw has three fingers if it is a traditional design or two fingers if it is the Asian-style "UFO" machines. Rarely, there are four. Claw machine gantry assemblies typically consist of two main moving carriages. The first controls the movement along the forward and back axis. This is the long moving set of rails. On these rails sits the gantry carriage, or gantry box. This is the actual component the claw is suspended from, and it contains the motors for sideways movement, alongside the motor and pulleys for the movement of the claw on the Y-axis. These gantries also contain a series of small electronic switches, which are responsible for letting the main PCB know when the carriages have reached their limits of movement, as well as when the claw is at the top or bottom. The main cabinets for claw machines are typically constructed of medium-density fiberboard, with wooden or metal inner support structures. Some more modern cabinets are made of aluminum alloy, which makes it easier to relocate as well as cheaper to produce. A lot of very high-end claw machines have full LED lighting on the front, behind a partially-transparent plastic panel, first popularised by Elaut of Belgium on their IntraXion E-Claw cranes. The top half of the machine normally consists of a metal frame, with tempered safety glass windows. The machine's marquee, typically located above or behind the top of the glass window, is typically an acrylic panel with a graphic depicting bold lettering, that reads the model of the machine. The crane machine playing field is the platform on which the prizes sit, typically constructed of aluminum alloy or MDF. This is normally covered with fish gravel or polystyrene packing peanuts for decorative purposes or as a riser to lower or raise prizes. Fish gravel is normally used for machines where there are gaps between prizes, such as jewelry cranes or set payout machines, as it is more aesthetically appealing than packing peanuts. However,