Kudos [uSER=8020]@Just Sayin'[/uSER] !! The great feature of Japanese Clovers is the fact that the more you pull on them the tighter they get... and the more pleasure they give! Many other designs frustratingly pop off in such situations. Plus, many users have no clue regarding their nautical and sewing pedigree.
Therefore, like so many other BDSM items, they were “hijacked“ from other industries and professions. That’s why the first place to often shop for such items ranges from your local hardware store to medical catalogs and every other possibility in between!