Q: How long is the warranty? A: One year. Q: Can we print our logo on the product? A: Yes,we support OEM. Q: What's your delivery time? A: Within 3-10 working days after payment. Q: Do you provide samples ? is it free or extra? A: Yes, generally extra cost is required to provide samples. Q: What is your terms of payment? A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 30% T/T in advance, balance before shippment.