This pack contains 4 pieces of 5 mm wide, self-adhesive backed, plastic, die-cut to fit round the outside of Scalextric Radius 4, 22.5 degree curves (C8235). They also work for SCX Digital track and can be used on some curves of routed tracks, depending on the radius. Similar strips are available for the other radiuses of curve and for straights.
Like the rest of the white line this is really quick to fit. Simply paint the wood first, let it dry, peel off the backing on the white line and press it into place around the outside of the curves. You can add grass effect flock afterwards.
White kerbs with raised red rumble strips are also now available for the inside of these corners. See K-R4.