Package includes 2 Profile Boards and 2 Connectors. Use the interlocking Profile Board pieces to create the layout perimeters and mountain profiles. Place Boards end-to-end or stack to any height using the Connectors. Trim Profile Boards with the Hot Wire Foam Cutter or a Foam Knife and glue in place with Foam Tack Glue™ or the Low Temp Foam Glue Gun and Glue Sticks. Each Board measures 24" l x 8" h (20.3 cm x 60.9 cm)