Cheap helmet, but if you look in the Ebay ad, it has its model number (JX-A5007). Here is a tinted shield that should fit.
http://buy4ride.com/product/tinted-m...a500550025007/
and here is a smoked one:
http://buy4ride.com/product/smoke-re...0055002-smoke/
You should really get a better quality helmet though.