360 degree rotating USB stick

On what occasion are U-disks given as gifts?

A. Major conferences, PR activities, exhibitions, etc., presented to participants as gifts and souvenirs;

B. Companies and institutions give gifts to their customers as promotional media for products, website advertising, brochures, manuals, etc.

C. Gifts or presents, gifts to customers;

D. New corporate image and product advertising;

E. Bundling of product sales to corporate users;