Most train toys target toddlers and preschoolers. Listings commonly label toys for about 18 months to 5 years, with some items listed as 3 years and up.
Common materials are wood and various plastics (often listed as plastic or polypropylene), plus PVC in some pieces. Several sets combine wood and plastic components.
Some play tables include built-in storage (large drawers), and a few train sets include a storage tub or are designed so pieces pack or nest together to make cleanup easier.
Yes — several listings explicitly state compatibility with major wooden train systems, so many wooden track sets are designed to connect with popular wooden-brand tracks.
Sizes vary by product: small boxed sets often have package dimensions around 10–16 inches, larger play tables are about 35–48 inches wide, and some ride-on track layouts can form a circle roughly 7.2 feet in diameter.