About product and suppliers:
            15,151 free mass mail products are offered for sale by suppliers on Alibaba.com, of which paper boxes accounts for 7%, mailing bags accounts for 1%. 

A wide variety of free mass mail options are available to you, such as food, shopping, and apparel. You can also choose from poly free mass mail

There are 1,156 suppliers who sells free mass mail on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of free mass mail supply is 100% respectively.