This is an adapter part compatible with Brio wooden train tracks. It has a sloped design to smoothly raise the tracks from the floor level. Made with 3D printing (ABS resin), it combines strength and durability. By attaching it to the end of the wooden track, trains can smoothly enter the track from the floor. Only the blue parts are sold, and the wooden tracks are not included. This is a set of 2. Recommended for those who want to expand their children's track play. Please refrain from purchasing if you are concerned, as this is a handmade item.