Common sense of the package

one look:

1 school bag body is full, the arc is natural, paste whether flat clothes, the angle is symmetrical, the fabric is obvious flaws, is clean and tidy;

Suture stitch is empty needle, stitch missing, skip the phenomenon;

3. Identify whether the name of the manufacturer, address and product materials, etc. used.

Second, try:

1. zipper pull is smooth

2. Put the handle, whether the strap is stitched firmly (you can use the hand slightly force pull)

3 whether the handle can be very comfortable to hold

4. Back of the back of the bag should be soft and flexible support of the buffer treatment, should not bear the pressure when concentrated in the corner parts.

5. School bag with a backpack should not carry the neck

6. The length of the bag should be able to flexibly adjust, lock firmly.

Third, pay attention:

1. Plastic bags installed on the surface of the metal parts should be no sharp sharp edges and burrs, so as not to damage the human body when used or hooked clothes.