A clamp that gives you significantly more leverage on your quilting ruler by holding with your arm versus your hand/fingers. Cuts will be much straighter & safer with your fingers away from the cutting edge. The LED light is a huge bonus that floods your work area with a bright 100 lumens for many hours with its USB-C rechargeable battery. It has low-high toggle brightness. Get that 24 inch ruler under control with this one of-a-kind Clamp Light.