(One Size ONLY – Litterbox and Liners) LINER ORDERS(10 Liners Per Roll) $5.00 (total) Flat-Rate shipping cost per "Liner Order" for orders containing: 1, 2, 3, 4, 5, 6, 8 or 10 rolls. "12-roll Liner Orders"= FREE SHIPPING! Liner ordersshipped via US Postal Service "Priority Mail"envelope/carton, delivered in 4-7 business days. LITTERBOX and/or LITTERBOX plus LINERS "COMBOS"(10 Liners Per Roll) $5.00 Flat-Rateshipping per each"Litterbox" and/or "Litterbox plus Liners (1-roll to 10-rolls) Combo" "Litterbox plus 12-rolls Liners Combo"= FREE SHIPPING "Litterboxes" and "Litterbox plus Liners" ordersshipped via FedEx-Ground, delivered in 4-7 business days. (Exorbitant shipping costs prohibit shipping orders containing Litterboxesto: AK, HI, and US Territories.)