4 types of construction toys with different functions including excavator, drill, steam engine and bulldozer, simulation models fulfill children's needs for trucks, stimulate children's interest and curiosity, allowing kids to explore the engineering world happily. Construction toys made of ABS plastic material, non-toxic, no sharp smell and noise. Trucks move freely without batteries, smooth models do not harm children's hands, more safety and environmental protection, children have more fun, parents feel more relieved. Toy trucks equipped with durable plastic screws, not easy to loosen, and solid parts of the truck will not fall apart or break during accidental drops, parts are easy to collect and store, trucks can be cleaned when dirty without affecting usage. Toy trucks are pushed with a touch, proper size for children's small hands, children experience fun toy trucks with movable parts. Perfect for indoor and outdoor play, children can also freely assemble trucks, improve children's practical skills and promote brain development. Children's construction toy trucks are delivered with beautifully designed gift packaging, perfect for birthdays / Halloween / Christmas gifts, family decorations, party gifts and bath toys, suitable for boys and girls aged 3-12, encouraging children to learn construction toy knowledge.