8x R56 curves for use with battery powered trains, enough for a half circle. Color is dark bluish-gray. .
R56 Curve x8 (PF)
R56 curves have a radius of 56 studs, measured from the centerline of the track. The outside diameter of a circle of R56 curves is approximately 38" (960mm). A single track segment covers 22.5°.
These tracks are all plastic, and work with any push- or battery-powered LEGO® train (namely Power Functions). They are not compatible with the older 9V or 12V train motors.
Each set includes 8 track segments, enough for a 1/2 circle.
If these tracks don't meet your expectations, send them back for a full refund. We'll even cover shipping.