Worried about incorrect installations?
All Design-A-Flange inserts are equipped with push-out membranes. That means no need for any type of tool when making the installation. Just push the cables through the membrane of the seal and the installation is complete. Since you will always have a round opening, you are guaranteed to have IP65. You do not need to worry about cutting the right size opening to match the diameter of the cable cable/pipe, or that you made the opening uneven and therefore endangered the IP-classification.