This is an Atlas N Scale Pier Set. FEATURES: Designed for use with Atlas N scale railroad layouts or dioramas. Pier parts are constructed of gray plastic. Pier heights range from 9/64" through 1-11/16" by 9/64" increments. May be used to create an basic figure 8 layout. INCLUDES: One Pier Set (25 pieces total: two each of 12 graduated concrete- colored plastic piers, plus one straight pier girder) SPECS: Model Scale: N COMMENTS: Grade with piers spaced at 5" intervals is 2.8%. Parts needed to create a figure "8" layout (must be purchased separately). Twenty sections 9-3/4" radius track (ATLU 2510). Five Sections straight track (ATLU2501). One section straight rerailer (ATLU2532). One set terminal joiners (ATLU2539). Track not included. Keep out of reach of small children. feb9/95sk ir/le san 9/7/01