Power tack , Fix-it Tack , Blue tack, white tack Power tack , Fix-it Tack , Blue tack, white tackpower tackPermanently plastic, reusable multi purpose adhesive. Excellent adhesive qualities. Very piable. Non toxic - safe for all the family. Designed to hang posters, hold many ordinary house hold objects in place, temporarily stop leaks around the house. Has a multitude of uses in the home, office ...