The Stanley Jr stem cement mixer kit model TT003-SY is perfect for children who like to take apart and put back together toy construction vehicles- this 23-piece set comes with all parts necessary to build a construction cement truck that measures 8.5 by 5.5 by 6 in.- with a plastic screwdriver, bolts and figure added, it arrives in a gift box with instructions, ready for that young want-to-be construction worker in your life. The yellow and black construction toy truck by Stanley Jr is ideal for ages 3 years old and older- the sturdy mixer truck comes preassembled with a rotating and detachable drum, roof-top opening cab access and 4 wide wheels with attached 10 bolts that unscrew for disassembling or reassembling the vehicles frame, cab and attachments with the screwdriver- a red and black degree label from 0 to 360 wraps around one end of the drum.