AOD: Universal Garage Door Professional Grade" T" Rubber. Bottom Replacement for all T Style Makes and Model Rubbers- Available now in Black and Gray- AOD Lubricant Included GARAGE DOOR SEAL: Now 4 1/2" in Black and Gray. Replaces ALL old 3.75" and 4" T Rubbers. EASY INSTALLATION: Use current metal chanel- slide current rubber out- and slide new rubber in. UNIVERSAL: Fits, Clopay, Amarr, and all other " t" style channels. AOD uses the most heavy duty professional grade rubber on the market- this is NOT the cheap chain store rubbers. DIY- Easy to cut in place- adjust for 1, 2, or 3 doors. And all orders include our AOD exclusive 13oz Garage Door Lubricant.