how do you write with the one on the bottom? these usually don't fail as fast as the twisty things,but you gots to cut them off unless you know the trick... couldn't live without these, great for cables in the studio. laptop power supplies, etc. you can connect 2 or 3 to together to make a longer strip if you need it. velcro. greatest natural product on earth. derived from Stickinamus Velcrois,in the thorn family , Stickinamus. First harvested and cured by Joseph Wyre, for whom the Wire was named, also one of his inventions.