Points for attention: 1. The smashing materials is not exceed half of the smashing groove. 2.The smashing meterials should keep dry, no moisture and grease. 3.When it starts up,please shut off the power supply immediately if the blade is stuck by the smashing materials and the motor does not run (buzzing noise occurs) to avoid burning the motor, and then remove the blocks, check the fuse and restart the machine. 4.Ususlly smash the hard medicines into powder for a minute. Do not continuously operate the machine for a long time, you can use this machine in interval. 5.Do not clean the machine with water, you can clean the machine by cloth or brush. 6.During using, do not open the upper cover or put your hands. 7.You must shut off the power supply if the motor does not run. The shipment will be arranged in 1-3 working days( not including customized product), and takes about another 3-9 working days to reach you.