Belay glasses Plasfun First are a basic model with a great price/performance ratio. They are suitable for everyone who wants to save themselves neck pain when belaying. Trapezoidal prisms allow a wider view of the climber, while maintaining important peripheral vision. If you do not need them, it is possible to store them in a case (included in the package) and attach them to the harness. The package also includes a cleaning cloth, string and spare screws.