Microbrite Balls, 2 Mm, 5 Mm Weight, Raytech 41214R. Product Details Porcelain balls are utilized to achieve bright finishes without the use of steel media. Because of its shape, it imparts a single point of contact resulting in a very fine finish to almost any area it can REACH. Porcelain balls will not leave impingement marks that steel media produces on some other softer metals and/or flat surfaces. Their lighter weight lessens the distortion potential for lighter work and wire forms. Very popular for delicate parts, fine edge blanking and precious metal burnishing. Use with Raytech compound D. Mixing the sizes is recommended for good Vibratory action. Please note that a break-in period of 4 to 6 hours is required. Density: 125 lbs/cu ft. Recommended for fine finishing and burnishing Porcelain Balls are an Alumina Silica mix Perfect for polishing flat surfaces and softer material A popular media for edge blanking and precious metal burnishing 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.