Great advertising for your closet, here are ten (10) Poshmark polymailers, a small business essential. Easy to use. NEW TO POSHMARK? Use my code LUXTINAMTFER to save $10 10” x 13” (not including the flap closure) Offers are welcome and considered. We appreciate your patience for a discounted shipping offer on items/bundles $100+. NWT. NIB. Posh Boss Essentials. Posh boss Gear. PoshFest souvenirs, PoshFixings score, Posh N Sip, Posh N List, Posh N Coffee. Love Posh Swag? Ask me about my unlisted stash.