The WM-550-574-SC-PK is a Wire Marker, Vinyl Coated Fabric, Black on White, 1.5 inch Height.B-500 Repositionable Vinyl Cloth wire markers from Brady are perfect for your general wire marking needs. Card-mounted wire markers allow for quick, on-the-spot wire marking. Brady B-500 Repositionable Vinyl Cloth holds tightly to surfaces but allows item to be repositioned with ease if necessary. They have excellent flexibility for wrapping around curved surfaces and can withstand moderate heat, oil, water and dirt.