The Boxery LP White Record Mailing Boxes 12 1/2 x 12 1/2 x 1/2 Inches or 1-Inch (OPF12121-50) Size 12 1/2 x 12 1/2 x 1/2 or 1'' multi-depth option Made in the USA strong corrugated protection for mailing Arrives flat for easy storage Package contains 50 mailing boxes