This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Kiddies Jigsaw Only 70 Lockable Large Pieces to play with.... Non are Turned for easy Fitting... Small Size Model Only 2 mbs...