"Undoubtedly sturdy and easy to use. Would be great value except the four I bought online all had one of the arms curving sideways resulting in the clamping surfaces being out of line and the clamp twisting when tightened. This rendered them unusable. When returned to my local store the ones they had in stock had a similar defect. Without this defect they would be 4/5 stars all round. As it is only one star, I'm afraid. This may well just be a faulty batch. Check for this when buying and it may not be a problem."