This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Adirondack style infant swing. Designed to be hung by 2 ropes (one in front and one in back) that feed through the bottom for added strength. The top can be made permanently attached or allowed to slide up and down along the ropes so the infant can get in and out of the swing themselves.