Garmin QuickFit 20mm Watch Bands - Swap, click and go with 20 mm wide interchangeable bands for your compatible dive watch. Whether going over a thick wetsuit or a dry suit, these silicone bands allow you to change your watch's look and feel in a snap. Need some extra length? The included extra-long adjustment strap fits around diving gear and is tested to work underwater. Plus, it's easy to switch and always secure. No tools required. Fits Descent Mk2s