Self-sticking pipe markers from Brady? simplify installation with their factory-applied industrial-grade adhesives: simply peel off the backing and press the marker in place. Banding each end of a pipe marker with directional flow arrow tape is recommended. Style 1 pipe markers measure 2-1/4 in. x 14 in., come one marker per card, and fit pipe diameter 2-1/2 in. to 7-7/8 in.. High gloss, durable, flexible vinyl with a permanent cold temperature pressure sensitive acrylic adhesive. Good chemical, oil and water resistance.