4 x DIY DC 3.7V 50000RPM 716 Hollow Cup Coreless High-speed Motor with 4 x 55MM Propeller Cw CCW for DIY Micro FPV Quadcopter Color:only Motor size Manual measurement error 1

size  Manual measurement error 1 to 3cm

You can also use a heavy duty paper punch for cutting out images

Projection Ratio: 1

ELEGANT DESIGN: Decorative plastic cover presents a nice look

4 x DIY DC 3.7V 50000RPM 716 Hollow Cup Coreless High-speed Motor with 4 x 55MM Propeller Cw CCW for DIY Micro FPV Quadcopter Color:only Motor size Manual measurement error 1High quality, solid metal case Material: Alloy Color: as shown in pic Descrption: Hollow glass specification: 7x16 mm Rated Voltage : 3. 7v Speed : 50000 RPM (the actual speed may be high or low) Electricity flow: no load: 0. 08A Locked rotor: 1. 8A Rated voltage : 4. 2 v Electricity flow : no load 0. 1A ,blocked : 2A Speed : 50000RPM Output shaft : 0. 8mm Output shaft lenght : 7mm Lead long : about 46mm Wire color: red&blue wires,black&white wires