One of the most important items for your Save-A-Dive kit is a spare regulator mouthpiece. This Ultra Black Silicone Mouthpiece is universal, and will fit a large variety of regulators out there. Mouthpiece is soft and comfortable. Don't let a bad mouthpiece and a leaking regulator ruin your dive; always carry a spare! And don't forget the Tie Wraps to attach it with, see SKU AQUTW10 Tie Wrap.