Now even finely detailed stained glass patterns are fast and easy with Redi-Lead . Simply peel adhesive lead from its backing and outline pattern on the surface! So fast and amazing, this simplified technique eliminates the waiting before the painting! Redi-Lead is not suited for suncatchers and is not easily repositionable after the design has been painted. Value Pack- Includes 72 feet of 1/8″ adhesive backed lead lines.