HERE IS AN AMAZING MECHANIX ENGINEERING SET WHICH WILL HELP YOUR KIDS TO BE INNOVATIVE & CREATIVE...!!.& THIS SET CONTAINS 170 PIECES , CRAFTED FROM HIGH QUALITY STEEL , WHICH ARE POWDER COATED , SUPERIOR PLASTIC & SELECTED TOOLS WHICH WILL BE FRIENDLY TO YOUR LITTLE HANDS SO THAT YOUR KIDS HAVE FUN WHILE CREATING VARIOUS MODELS.YOU CAN USE THESE PARTS OVER & OVER AGAIN TO CREATE AT LEAST 15 MODELS & MAY BE MANY MORE AS FAR AS YOUR KIDS IMAGINATION FLIES.