菲律宾采购需求：旅行行李箱，3件套行李箱，拉杆箱，随身行李箱，行李袋，拉杆箱

I'm looking to gather more information about the 3-in-1 set you offer. Specifically, could you provide the pricing details for the various sizes available? I'm interested in understanding the cost for different options and any discounts for bulk orders. Additionally, it would be helpful if you could share the specifications and materials used for the set. This will assist in making a more informed decision. Do you also have any ongoing promotions or lead times I should be aware of? Thanks for your help!