Manufacturing plastic products and the necessary tooling for these products can be extremely expensive and cost prohibitive here in the US. Typically we find tooling and mold costs to be only 1/3rd the price overseas. With such low tooling fees you can increase your margins or produce shorter run products that would not be profitable in the US. Other hurdles when it comes to manufacturing plastic goods in the US is the very strict environmental concerns and regulations which end up adding considerable cost to the end product. Overseas these regulations have not yet been implemented and the result is a much friendlier manufacturing market and a much lower cost for you.