Subterrain System Foam Products - Risers -- 4"

This package includes 2 Risers, generally used with Incline/Decline Starters to create varying grades of dramatic, steep relief on your layout, and to create lower areas for rivers and valleys. Risers are easily flexed to form curves and can work with both plywood or foam bases. To install, pin in place with Foam Nails and attach with Foam Tack Glue or Low Temp Foam Glue Gun and Glue Sticks. Each Riser measures 4 in x 2 1/2 in x 24 in (10.1 cm x 6.35 cm x 60.9 cm) « less