Double suction cups with 2 pulleys

Place the suction cups on the glass on which you are working on. Press the pump repeatedly until the red line on the pumps is no longer visible. Always test before the correct suction is reached before working. At lower temperatures, the rubber suction cup must warm up to function properly. This suction cup with pulley is often used with the RL-eez system and is particularly suitable for heavily curved windows such as those of a truck or bus.