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 Motorola PIEZO Bullet TWEETERS. Cannot remember what brand and model speakers these came out of, but they work fine. These are often found in musical instrument powered amps. Faceplate measures about 3 3/8" square, and all screw-holes are 2 13/16" apart, measured center-center. No screws included. Positive and negative terminals are marked near the wire terminals. Part # shown in title... I'd guess the 236 is a date code, meaning the 36th week of a year ending in 2, like 1962 or 1972, but this is my guess. After buyer has left positive feedback to acknowledge everything OK, I will immediately return the favor. Ask any and all questions BEFORE buying!