Using these Abaco single handed stone carrying clamps is easy. First, make sure the rubber - padded jaws are clean and in good condition. Then, position the clamps on the stone slab in an upright position. Each person should hold one clamp with one hand. Two people working together can lift and move the heavy slab safely. When using, always check that the clamps are firmly attached to the slab. After use, clean the clamps with a dry cloth to keep them in good shape. Store them in a dry place to prevent rust and damage. Also, don't overload the clamps beyond their capacity to ensure safe operation.