This layout features 3 crossings. The smallest curve is R95. Set includes all the track you will need for this layout. Layout measures 35.4 inches x 21.6 inches (900mm x 550mm). Included : 1 x R020 Crossing track 13deg, (2 x Straight track 53.6mm), 2 x R025 Crossing track 90deg, 3 x R030 Straight track 25mm, 6 x R024 Straight track 55mm, 6 x R001 Straight track 110mm, 6 x R010 Curved track R95-45deg, 18 x R011 Curved track R120-45deg, 4 x R012 Curved track R490-45deg. Check out our line of Rokuhan accessories to enhance your layout!!