The US family that made them retired and another has bought the rights to make the Slidelock. If you don't know about Slidelock here is a video. I bought one when it was only made in Australia, then a US couple bought the rights and made them until retirement and now another bought the rights.
If you don't know about Slidelock here is a video. Mine are clear but now they are the yellow color. I have the large and small size and I don't cut fabric without it. One visit to the ER with a cut I never cut without a safety device. The hurt and trauma aren't worth the it will never happen to me because I am careful thinking. Great to keep fabric in place, no slipping or movement at all. I use the large one to smooth out the quit when glue basting.
https://www.youtube.com/watch?v=PGheLl_MS8E&t=425s