This 2% Incline Set has eight sections that raise the elevation of your track from zero to four inches in 16 feet. Incline Sets allow smooth transition from one height to another. To install Inclines, center on the Risers, butt the sections tightly, pin in place with Foam Nails and attach with Foam Tack Glue or the Low Temp Foam Glue Gun and Glue Sticks. Each piece measures 24" l x 2½" w |