Adams® Carbonless Invoice Forms, 5-9/16" x 8-7/16", 3 Part | Make More Happen at Staples® Shop Staples® for Adams® Carbonless Invoice Forms, 5-9/16'' x 8-7/16'', 3 Part and enjoy everyday low prices, plus FREE shipping on orders over $39.99. Get everything you need for a home office or business right here.