Length 142.0 mm / 5-9/16 inches. Designed for curved track with a radius of R-1: 360 mm / 14-3/16 inches (like Marklin 24130).

16 pieces required for a full circle, each piece with a 22.5 degree of curvature. 

Use Marklin 70172 for 24230 track.

Package of 5 pieces.