Petzl America Has Recalled Belay Devices Due to Fall Hazard. Excessive force on the handle can cause it to become stuck in the open position. When stuck open, the assisted braking function is disabled, posing a fall hazard to consumers. The GRIGRI 2 belay device is used by rock climbers to control the climber's safety rope during a fall or while being lowered on the rope. The first five digits of the serial numbers of devices affected by this recall range from 10326 to 11136. The serial number is engraved on the body of the product underneath and protected by the folded handle. The belay devices are 4 inches in length and 2 inches in width, and come in grey, blue, and orange colors.