As any climber will know, belaying involves looking up (and straining your neck) for long periods of time. __Y&Y belay glasses can help climbers by removing the need to constantly raise their head, keeping neck muscles relaxed for longer. You can keep an eye on your environment and the task at hand, while keeping your partner in sight, giving you more concentration and better security.High quality optical prismsLight and resistant stainless steel framesFlexible bows with memory alloyHigh quality glasses cases with carabiner to hang to your harnessAnd don't worry if you already sport some face furniture: wearers of eyeglasses and users of sunglasses can wear Y&Y Belay Glasses too.__What's in the box?_ Y&Y Belay glasses_ Instructions_ Glasses case_ Info card_ Mini screwdriver_ Back-up nose pads_ Rope retainer