EASY TO ASSEMBLE: -VATOS engineering tinker tool kit includes 72 accessories such as nuts, bolts, and building boards,and comes with 1 manual,providing a variety of gameplay.Equipped with kid-friendly simulated screwdrivers and wrenches, kids can assemble and disassemble the building blocks toys easily. SAFETY GUARANTEE: -Made of high quality natural wood and decorated with water-based safe paints,the building block kit is non-toxic and safe.Every part has been tested in detail and conforms to US Toy Standard.VATOS makes sure your kids are 100% safe and protected from harmful chemicals. PERFECT CHRISTMAS GIFT FOR KIDS: -With colorful designs and various ways to play,this construction building toy is an ideal educational toy gift for boys girls age 4-8 years old.It would be a great birthday or Christmas gift!.Kids can use this tool tinker toy to play interactive games with their parents and friends, which can promote childhood development and social skills.