According to Mr Leong to be ball joint understand,Material of the pull rod box can be divided into: iron pipe, aluminum pipe; Tube type: oval tube, pipe, tube type D, drum type tube, stripe tube, square tube, etc.; Wheels are: universal wheel, right wheel, package, not package edge, etc., and can choose with bearings and without bearing.
 
At the time of selected pull rod box, read the rod is fixed on the bags and firm, lever pull up and down is smooth. If it is with button bars, but also whether the button after press down soon bounce. Moreover, the material of the pull rod, belongs to the iron, or iron aluminum, or aluminum. The best, of course, is the whole aluminum material, the material is light, strong, not easy deformation, the cost is higher, adopts the pull rod bags are usually not cheap, so use more on high-end bags; Followed by iron aluminum, namely the outer tube was made of iron and aluminum tube is. Commonly used in high-grade bags; As for all the iron, the price is low, often used for relatively cheap cheap bags. Grasp this, is very important.
 
"New weapon" pull rod box
 
Go out to travel with? In addition to id card, money, credit CARDS, personal toiletries, simple clothes, rain gear, anti-inflammatory drugs band-aid, camera and so on "routine" equipment, but also with some "new weapon" pull rod box.
 
Prepare travel supplies, you have to find a bag to receive them. Travel with best strong case of suitcases and bags, light and function. 
 
    According to Mr Leong to be ball joint understand,You can try to choose PROMAX bags. This is a novel by a group of French designer bags, owns several patent structure, such as "the hive pads" inside the bag bag for easy broken items such as electronic products provide protection, and "FlatpakTechnology" folding rod box, rod box can be folded to the bag size, the most intimate design is called "ArmadilloClaw", box shell of rod box, there are three distinctive modelling the claw clasp, can be GouGua travel backpack, towing lines the backpack on the pull rod box in order to reduce the burden of the body, after checked luggage will be back backpack shoulders, relaxed and free.