Features: Color: Yellow Material: Plastic Number of vanes: 2 4 blade Blade Width:/0.98 aperture: 2///0.078 millimeter in millimeters to the stem with many 130 DC motor – for a mini fan, electric toys and a perfect for a science experiment, such as plastic bags 5 Pack is supplied and packing included: 1 * Yellow 5 Pack inside the fan leaves sippumoderu DIY Plane for 4 vanes and flormoon motor propeller