2 sizes now available: One accommodates 8.5"x11" paper stacks. The other is for 11” x 17” paper. See Materials page on this site for more details.Choose either an aluminum or bamboo clamp. It will firmly hold 5-75 pages of 20 lb. text stock and will also accommodate some fabrics of course other paper stock.• The small bamboo backing board measures 10.25" x 12.5". The large one is 12.5" x 17.25"• One 2 mm thick Mylar cover protects the stack and is easily laser-engraved with no harmful VOC fumes. Custom laser available upon request.• One set of threaded D-ring bolt and fixed screw post are included and made of stainless steel. D-ring folds flat against the bar when not in use.• No tools required.• Patented. Made in Portland, Oregon USA.SHIPPED BY GROUND BASED ON WEIGHT (calculated at checkout). Please email to request rush deliveries (extra fees apply): order@luxbindportfolios.com