Does exactly what it says it does. The small sheet you can buy can be cut up and used for tons of small thing (vases, things you don’t want your cat to knock over, MagSafe chargers that you don’t want to move around, etc.
by far my favorite speaker wire ends, can't imagine any other style that offers the connection and secureness that these offer, I have the straight and 90 degree banana plugs and also the stranded wire style, all are amazing.