1. Quality Material: Train track set is made of quality beech material, and the surface has been hand polished many times. It is precisely cut and easy to splice without loosening. The surface is smooth and round without burrs to avoid scratching your child's skin 2. Size Detail: Wooden train bridge track set contains a variety of components. The dimensions of each component are: three hole train bridge 17.72 x 1.61 x 3.15 inches/ 45 x 4.1 x 8 cm, straight train track 1.57 x 6.3 inches/ 4 x 16 cm, large curved train track 1.57 x 7.09 inches/ 4 x 18 cm, starting train track 2.95 x 1.57 x 0.47 inches/ 7.5 x 4 x 1.2 cm 3. Wide Application: Wooden train track series is a novel, creative and fun multifunctional gift suitable for birthdays, Christmas parties and get togethers. This fun and educational toy provides your child with endless fun while promoting creativity, fine motor skills and spatial awareness 4. Clever Design: Hardwood train track expansion packs contain a variety of different track pieces such as curves, straight lines, bridges, with rich configurations, allowing children to create a variety of different train track configurations through different combinations. Encourages children to use their imagination and creativity as they build and play