For Use With Blasting Cabinets Or Blasting Guns, 46 Aluminum Oxide - 19 Lbs - Product Details Aluminum Oxide is a fast, versatile and economical cutting abrasive. Aluminum Oxide is the second hardest mineral on Earth, second only to diamond. Aluminum Oxide can be used in wet and dry blasting applications for cleaning, deburring, etching and finishing. Aluminum Oxide is ideal for etching the surface of glass as it?s hardness is greater than glass. Aluminum Oxide won?t break down as fast as glass blasting media and has a longer cycle life than most blast media. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.