This material clamps are highly recommended. They hold all kinds of fabrics laid very good. Unlike pins they remain at the location where they were attached. In particular, when stitching on cuffs for example, hold at the exact spot. Furthermore, one can not overlook the brackets, as the needles. The fabric will not be damaged (as with needles also sometimes the case). And the fingers are no longer stung! Also wonderful: sew bias tape.
I'm going to definitely buy more of it. They are well made and well worth the money!