If you want to exchange or return the product, you must contact us first. The customer has the right to return the product within 14 days from the date of receipt, provided that the product is intact and has not undergone any change, and the customer bears the shipping costs in full, and the cost of the product is returned to the customer within 14 working days. The customer has the right to replace the product with another product, before sending the shipment. After sending the shipment, he is entitled to replace within 14 working days, and he must bear the full shipping cost and the difference in the cost of the product, if any. If the product is defective, or does not conform to the specifications specified at the time of purchase, the blind person is entitled to