I am extremely disappointed in the quality of products I have received from your company. This is now my third shipment of defective tumblers, with both speaker tumblers and 40oz tumblers having issues. Despite receiving a replacement order for the speaker tumblers, over half of the replacements were also defective. I specifically requested that the products be checked before sending them out again, but it seems that my concerns have not been addressed. I have been trying to reach my contact about this issue and have been given the run around about speaking to a manager for weeks now. If you decide to purchase from this company, please be aware of the risks involved and thoroughly check your merchandise immediately upon arrival.