A clamp

A clamp 10 is for mounting on an arm. The clamp 10 comprises a frame 14, a gripping element 20 and a moveable clamping member 26. The frame 14 comprises an upright portion 16 and a lip 18 located at a lower end of the upright portion 16 and extending substantially perpendicularly to the upright portion 16. The gripping element 20 is connected to the frame 14, and is arranged to mount on the arm, and comprises a first component 22 and a second component 24 connected together at one end and spaced apart at the other end, the arm to be located between the first component 22 and a second component 24 in a hole 34. The moveable clamping member 26 is mounted through a hole in the second component 24, and comprises a shaft 28 and an engaging portion 30 arranged to be moved towards the lip 18 of the frame 14.