*This clause does not apply to Pre-owned & Refurbished items. A. Product or service is defective when you receive it, inside of 14days of shipping, you may return faulty merchandise to Elegoo and get a full refund or replacement, and Elegoo is accountable for return transport expenses. Or it is https://mega2579246.actoblog.com/28491095/ligamega25-no-further-a-mystery