Specification Brand : IndustrialField BulletPoint1 : 10pcs 3D Printer A4988 DRV8825 Stepper Motor Control Board Expansion Board BulletPoint2 : Developed Countries Estimated Delivery Time: 7-17 days(trackable),Other countries Estimated delivery time : 8-30 days.----- We provide Expedited Shipping service : 3-8 days.(excluding handling time).If the order amount above US $200, we will use Expedited Shipping service for free. BulletPoint3 : If it is not delivered within the specified time, or if it is not satisfactory. You only need to send a refund request and we will refund you in full. BulletPoint4 : We make every effort to provide customers with satisfactory service.any question,please feel free to contact me. ExternallyAssignedProductIdentifier : 4793392475568 ItemName : 10pcs 3D Printer A4988 DRV8825 Stepper Motor Control Board Expansion Board ItemTypeKeyword : 3d-printer-controllers Manufacturer : IndustrialField Material : Copper PartNumber : IF-modulen_10375 ProductSiteLaunchDate : 2019-10-14T19:05:46.641Z UnspscCode : 26111500