Regarding color cards/samples, A4 samples will be provided free of charge, but the postage will be borne by the buyer. Contact customer service or leave a message after clicking on the specified option. Regarding the customer service wechat, we can reply promptly. Please contact us by phone! Regarding after-sales service, if there are any quality issues with the received goods, please take photos and send them to the customer service. Returns and exchanges can be made before the goods are cut. For in-stock goods, they will be dispatched within 24 hours. For custom-made items, please contact customer service to confirm the delivery date. Note: Due to the differences in displays, color variations are inevitable. If you have high requirements for color, it is recommended to customize according to samples.