Returns of products will be accepted within 7 calendar days of the postal delivery date. We will use the official shipping carrier tracking information available online to determine when a package was delivered within the USA. If the package was delivered to the wrong address, the 7 calendar days limit still applies as we are not responsible for shipping carrier mistakes or buyer providing incorrect/incomplete address. For international orders, the buyer must provide evidence of date of receipt. If the international buyer does not provide such evidence we will not accept any returns. Materials must be returned in like-new, resalable condition and in the original packaging and/or ziplock bag in order to be considered for a refund.