They seem to have a surprisingly well worded website with decent graphics and realistic specs.
At first I was thinking that it was sketchy, but then I looked at the distributor list.
The distributors are legitimate, well known companies.
I suggest you contact Proel directly.
U.K.
Proel (International) Ltd
TEL : +44 (0)20 8761 9911
USA
FBT USA, Inc.
TEL : 860 - 829 - 0434
Toll Free in the U.S.: 800 -333 -9383