Hood does not have any threads for the filter in the front. You could put 52mm cap in the front but it does not fit well, and it does not lock properly. It seems that it was not designed for that.
Shipping is free within USA and $7 worldwide.
It is made in China. Lens hood will be shipped as pictured. No other accessories are included in this auction. It will be packaged well to protect it from damage during shipping.