Size: 3mm *4mm/0.11'' * 0.15''(W X H)(approx)<br />Qty:4pcs<br />Suitable for Syma X5 X5C/X5SC/X5SW RC Quadcopter<br />Color:White<br />Material: Plastic<br />Suitable for Syma X5 X5C/X5SC/X5SW RC Quadcopter<br />Package includes:<br />4pcs X5/X5C/H5C/X1 motor gears(the engine is not included)