This is an HO/O Scale 5mm x 12" x 24" Track-Bed Super Sheet / from Woodland Scenics. / / FEATURES: Durable non-absorbent Black foam material / Conforms to all applicable NMRA standards / Sound-deadening and vibration-cushioning for quieter, smoother / operation. / Flexible material may be tacked or glued down and wont dry out or / crumble. / Great underlayment for multi-track yards, switches, loading areas / and sidings. / / INCLUDES: One HO/O Scale 5mm x 12" x 24" Track-Bed Super Sheet / / REQUIRES: Hobby Knife / Foam Tack Glue / Adult Supervision / / SPECS: Length: 24" (60.96cm) / Width: 12" (30.48cm) / Thickness: ¼" (6.35mm) / sdw 2/27/01 / ir/jl