Hi, I have the Apeks WTX 4 wing for technical or rebreather diving. The wing has never seen the water as I got it as a package deal, but I don't need an extra wing. I'm selling it for $150 free shipping within the United States, and for international, please PM me. If you have any questions, please PM me about it. As I said the price is $150 firm with free shipping. Thanks for looking.