· It was easy to set your own number. · It is easy to understand because it stops as "click" when the numbers are matched. Easy to do thanks to that when you re-lock and unlock. Those of other companies wanted these types because it took too much time to unlock and lock even if the number was adjusted and it was loose. · Not heavy. · Easy locking is easy and functional, I think it is good. · I think it is good for putting on a bag etc, but it may be a bit big for that. · Packing of goods was a plastic bag. Good with ecology.