Genie 37220r Replacement Safety Beams offer plenty of sensible desirable and innovative features. More power and a reliable performance come standard with next-generation Genie garage door openers. The beam s smart bracket design enhances durability and the deflective style reduces catching. The versatile Genie garage door sensor beam works with all Genie models and for all residential door sizes. These units keep everything in place so your opener works as smoothly and as efficiently as possible. Portions of the pieces are coated to make them resistant to rust for a longer usable life. Each package comes with one pair for complete use.