Mask Buckel DX / Silicone strap

The DX Buckle mask strap lock, designed for use with the Silicone Strap for diving masks, allows for quick and easy tension adjustment. The basic steps are as follows:
1. How to thread the strap into the buckle: Squeeze and hold the release button on the side of the buckle, then thread the end of the silicone strap through the slot on the underside of the buckle. Positioning: Typically, one side of the silicone strap has a non-slip surface. Turn that side towards your head and pull the end of the strap through the buckle to the appropriate level.
2. How to adjust the tightness (while wearing): Tighten: To tighten the strap, simply pull the end of the strap (the protruding part) behind your head with your hand. The DX Buckle mechanism will lock the strap in place without slipping. Loosen: To loosen the strap, squeeze and hold the button on the buckle, then push the buckle forward (towards the mask lens). The strap will expand immediately.