When dealing with customer , sending samples is frequent for Hengdrive brushless DC motor salesman . Sending the sample looks simple ，actually especially need to pay attention to the package :

Firstly , the surface of the brushless dc motor sample should keep clean and no damage.

Secondly , place the brushless dc motor in the foam steadily. No shake when it is shaken.

Thirdly , straightly put the connection of the brushless dc motor in the foam. Had better not  roll into a ball.

Fourthly, seal the sample box with tape after placing the brushless dc motor. Had better wrap a layer of bubble bag outside the sample box to protect the motor better .