Strong, durable corrugated fiberboard200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs.Meets most mailing and shipping carrier specificationsSelect an ItemStrong, durable corrugated fiberboard200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs.Meets most mailing and shipping carrier specificationsStaples® Corrugated Shipping Boxes - 21" Lengthhttp://s7d5.scene7.com/is/image/Staples/s0444040_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0444040_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0444040/Staples-Corrugated-Shipping-Boxes-21-inch-Length/product_SS1065079Staples® Corrugated Shipping Boxes - 21" Length0.00Strong, durable corrugated fiberboard200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs.15/Bundle15/Bundle21"(L) x 21"(W) x 21"(H)Strong, durable corrugated fiberboard200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs.15/Bundle21"(L) x 21"(W) x 21"(H) - Staples® Corrugated Shipping Boxeshttp://s7d5.scene7.com/is/image/Staples/s0444040_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0444040_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0444040/21-L-x-21-W-x-21-H-Staples-Corrugated-Shipping-Boxes/product_40466221"(L) x 21"(W) x 21"(H) - Staples® Corrugated Shipping Boxes0.00Strong, durable corrugated fiberboard200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs.20/Bundle20/Bundle21"(L) x 14"(W) x 10"(H)Strong, durable corrugated fiberboard200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs.20/Bundle21"(L) x 14"(W) x 10"(H) - Staples® Corrugated Shipping Boxeshttp://s7d5.scene7.com/is/image/Staples/s0443562_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0443562_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0443562/21-L-x-14-W-x-10-H-Staples-Corrugated-Shipping-Boxes/product_40466321"(L) x 14"(W) x 10"(H) - Staples® Corrugated Shipping Boxes0.00