23" Morton Layout Blocks LB23 Stained Glass Supplies TWO L Blocks 16 Pins ADD ON
Use inexpensive soft board with your Layout Block System. Imitation plywood (such as "Homasote" ) and fiberboard panels (used in suspended ceilings) are two popular choices. I use free scraps of drywall left over from a remodeling project.
This add on set contains two 23" L shaped blocks and 16 push pins