joyin 4 pack friction powered city vehicles including garbage truck, fire engine truck, boom lift truck and construction dump truck with lights and sounds joyin includes 1 garbage truck, 1 fire engine truck, 1 boom lift and 1 construction dump truck endless fun. a good variety of 4 daily use city vehicles. all of them have light and sound. <p> friction powered. trucks will roll on their own with pushing for a long distance on smooth surfaces. full of details like the real trucks. each truck is 10.5 inches long, 3.5 inches tall and 4.5 inches wide. <p> fire engine has flexible scaling ladder. it can be rotated and stretched out. boom lift has aerial work platform, which can be elevated. <p> garbage truck also plays like real. cargo can be lifted. back door can be opened to dump in “garbage”. dump bucket is able to be lifted for the construction dump truck. <p> customer satisfaction. providing a 100% satisfaction experience is our main priority to our customers. feel free to message us through “contact sellers” if products don't meet your expectations. the celebrations start at joyin!