At this moment, we are unable to provide an exact date for when the out-of-stock item will be available. Please stay tuned for further updates!

We offer various shipping methods based on your country or region. You can view the estimated delivery time for your order on the checkout page.

We are unable to select a specific local carrier, as this is determined by your shipping address and the current delivery conditions.

If a shipping country/region is not available on our page, it means that we currently do not offer a shipping method for that location.

Please note that free express shipping for orders over $100 is only available to customers in the United States, the United Kingdom, and Australia.

The checkout price with standard shipping is the final price, including the import fee. For express shipping, taxes may apply if the value is high. If we anticipate that the order might be subject to taxes, we will contact the customer before shipment. Additionally, if you purchase multiple packages from overseas within a certain period, customs may evaluate the total value to determine whether taxes apply. In such cases, we are not responsible for any additional charges.

You can download the Mould King app from the following links:

Apple App Store:
MK Basic: https://apps.apple.com/us/app/%E5%AE%87%E6%98%9F%E7%A7%91%E6%8A%80/id1457417598
MK Plus: https://apps.apple.com/us/app/%E5%AE%87%E6%98%9F%E7%A7%AF%E6%9C%A8/id6444075223

Google Play Store:
MK Basic: https://play.google.com/store/apps/details?id=com.yxkj_main.building_block_robot
MK Plus: https://play.google.com/store/apps/details?id=com.yxkj_main.yu_xing_long_connection

Please note that for certain models, the MK Plus app is required. Make sure to download the correct version based on your device to ensure proper functionality. The models that require the MK Plus app are: 17007, 17008, 17025, 17036, 17044, 17047, 17048, 17049, and 13181.

Sales made through other platforms are managed by different companies, so we are unable to offer replenishment services for those purchases. For items bought on other platforms, please refer to the respective platform's terms for after-sales service. For purchases made on Amazon, kindly contact the seller directly, as Amazon customer service will not be able to assist with this.

Due to a temporary shortage of our anti-counterfeit identification codes, we are currently unable to offer missing parts services for purchases made through external channels. We are awaiting replenishments from our production department and expect to resume full services shortly. We appreciate your patience and understanding during this time. Please check back soon for updates. If this is urgent, we recommend reaching out to the seller from whom you made the purchase or submitting a return or replacement request directly.

Unfortunately, we do not offer paper manuals for purchase. However, digital versions of the manuals are available for download.

Digital manuals are available on each product page where applicable. We will continue to review and upload new digital manuals as they become available. Please note that we have chosen not to upload the digital manuals for certain specific sets in order to protect our intellectual property. However, a paper copy of the manual can be obtained with your purchase.