Relief 3D hollow sculpture ball model design download, STP format Relief Ball download, IGS format hollow ball download,STL format relief hollowed out ball download, STP format relief hollowed out ball, hollowed out sculpture Ball 3D map download;Note: the compressed package can be downloaded in STP format, IGS format, STL format, ZTL format, etc. It includes embossed ball with solid and hollow ball. As shown in the screenshot.