The GEE189F-A-C0 Polyethylene Slotted Grommet Edging protects and prevents wires and cables from chafing against sharp edges of panel walls and knockouts. Slotted edging is recommended for use on irregularly shaped and round panel holes. The material is highly flexible, while the adhesive lining ensures the product will stay in place. Packaged on a 100' (30.5m) reel for easy handling and dispensing. Polyethylene. Designed for 0.144"-0.189" (3.66 mm-4.8 mm) thick panels. Color Black. 1 per pkg.