@tim-hobbs
the Avery wrapping magnets definitely have a slightly better grab and appear to be that bit more powerful. the short lever-grip also helps when folding over the material as it doesn’t kink the vinyl just as easy. but the short grip does also reduce the ease of removing the magnets, so makes them feel that bit more power-full again. so be careful not to let that alter your judgment. they are better though!
i would ask the likes of anchor or bisbell if they offer slightly stronger versions of their own.
