Materials: durable iron wire and sponge. Perfect decoration for house, desk, living room, kitchen, Christmas, etc. Quality material: these railroad scenery model trees are made of plastic material, well workmanship, flexible and durable for using. Mixed model trees are approx:6cm, 8cm and 10cm in size, and these model trees also suitable for miniature garden decor. It can be used as a gift to your friends, college students, classmates and family.