The Mayset Heavy Duty Stainless Steel-304 Pergola Roof Riser Beam Bracket Comes Product Details This package includes 3 pack of patio roof risers, all the bracket parts are made of 304-stainless steel and were black finished; This bracket is angle adjustable from 0 to 90 degrees?suitable for all roof angles? The support arm length is 6inch, can rise the pergola up about 6inch vertically. wall thickness of the swing arm is 11GA and the baseplate is 7GA? The Single patio roof bracket comes with 2 pcs 5/16 screws for wood base and 4 pcs 7/32 screws for pergola beam, all the screws are stainless steel (need to pre-drill holes before using hexagon screws) Note: The pergola beam which is supported by 3 brackets should not exceed 16 feet in width. 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.