We accept returns and refunds within 5 days of receiving your order. Items must be unused, undamaged, and in their original condition. If you receive a defective or incorrect item, please contact us within 5 days of delivery and send clear images of the issue to lumilab3dusa@gmail.com. Customers are responsible for return shipping unless the item is defective or incorrect. Approved refunds will be issued to the original payment method after inspection.