Use Foam Sheets as a layout base, to enclose tunnels, build bridges, create interior terrain profiles, form level elevated areas for buildings and towns, to build other structures and for other craft projects. Pin with Foam Nails and glue in place with Foam Tack Glue or the Low Temp Foam Glue Gun and Glue Sticks. ST1427 – 4″ (10.1 cm) Foam Sheets – 1 sheet/pkg – measures 4″ d x 12″ w x 24″ l (10.1 x 30.4 x 60.9 cm)