In the past orders,the packing is our neutral packing, because the inner box of the neutral packaging is thin, so we packed 2 pcs into one neutral carton box.For this batch of drive shafts,the box is customer' customized outer box. They are strong. And customer didn't request need 2pcs into one outer box again beforehand. But for better protect customer's color box during transportation, we made the strong outer box for free,and didn't charge customer any extra fees. This carton box just for protect your color box from our company to customer's company. We don't know how you will sell these products in your company, but for support you sell your goods in a good condition, we'd like to make one batch of neutral box for you for free, you just bear the air shipment is ok. Or if you have goods to deliver recently from China. we can deliver them to your other Supplier's warehouse in China for free.