Since 1990, I have enjoyed collecting and restoring antique radios and vintage audio.... all items I list will be exactly as described and packed extra well to ensure a safe delivery.. buy with confidence ! Ask any and all questions BEFORE buying! BUYER is responsible for doing their own research to ensure they are buying the correct part(s) for their speakers, application, or DIY project. And... for judging whether part(s) is compatible with their speaker's specs ! Once purchased, the order will NOT be canceled for any reason, and there are NO RETURNS! For sale is a pair of Radio Shack Realistic cat. # 40-1276B 1" Mylar Dome TWEETERS ... the dome MAY be closer to 1.25"... hard to measure. Each tweeter has an attached 3.3uF nonpolar capacitor which serves as an inline crossover. With an 8 ohm system, that creates a crossover point of 4000 Hz. Buyer can keep the attached cap, or remove it and use their own custom crossover as they need for their project. Although not included, there's a pic showing the side of original box that have a few specs. After purchase, I can email a picture of the 1-sheet Owners Manual that have more detailed specs. I never had any install screws so none are included. Better that buyer use appropriate installation screws/bolts based on their specific speaker cabinet, etc. After buyer has left positive feedback to acknowledge everything OK, I will immediately return the favor. Ask any and all questions BEFORE buying!