Nice looking toy, It may be the answer to the "depth play" I been looking for.
To answer your question most definetly, but you would need to use lots of lube and work it deeper and deeper over time.
For starters a smaller diameter is always best to start with and good quality well made, toys easy to clean are absolute essential, and don't forget the lube u will need lots of it!
Good luck
Wife and I have worked up to half way down her forearm, at last attempt...