Are you willing to waste your time?

Only order the clamps on amazon only if you are willing to redo a lot of packages, wait passages of delivery, and then retransporting mailing. Indeed, packaging protects nothing and do not prevent the clamp to take a walk outside during transport. I ordered 6 and they were packed by 3 in a box without insert that could hold 15. I guess the timing was ejected cartons seen the condition in which they arrived. 3 were broken and missing half of black plastic parts and skates. Write new packed separately and size suitable this time, but still without timing or protection, a result still downright split in two. Write new and yet the damage but this time I have no desire to waste my time with this for a missing piece of plastic, I took delivery in one day, it took one week in all. Fortunately the cartons were too otherwise I'd have not had enough to pack for the return saw their condition. Amazon prefers to send you as many as you need package until you receive the whole instead of using a sufficiently strong package and few protections directly.

When the clamps, they are well on their prices here, but they are plastic and so fragile that given the state in which I received certain. Do not let them fall by dismantling.