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 ! BUYER is responsible for doing their own research to ensure they are buying the correct speaker/part for their application ! NO ORDER CANCELLATIONS or RETURNS due to buying the wrong, or incompatible type speaker ! For sale is a pair of 1/2" dome TWEETERS removed from a set Polk M3 II speakers. Model/Part # from back of magnet is RD0438. Tested and play great. These were attached to rear side of speaker front/baffle, and held in place with some plastic clasps and hot glue. To remove the old, blown tweeters will require some good technical skills and patience, in order to melt and remove the old "hot glue" without breaking off the tiny plastic tabs/clasps that secure the outer edges of tweeter, in place. The front of tweeter faceplates/frames have 2 foam cushion pieces.. one on each opposite side. These were built into the faceplate/frames to help secure tweeter in place, and keep it from shifting. Buyer should have good audio technical skills and understand how to open up the M3 speaker cabinets... separating the front baffle from the main plastic cabinet is a bit tedious and must be gently pried apart so as not to crack the case. The woofer and tweeter are rear attached to front baffle. These are working tweeters in clean condition, and will install fine, however.. it is buyer's responsibility to know how to open the M3 cabinets and carefully remove the old tweeters, not breaking any plastic parts... so these tweeters can be installed !!! Buyer assumes all risk in attempting their repair! Will be well packed for a safe delivery. BUYER is responsible for doing their own research to ensure they are buying the correct speaker/part for their application ! NO ORDER CANCELLATIONS or RETURNS due to buying the wrong, or incompatible type speaker ! Ask any and all questions BEFORE buying! After buyer has left positive feedback to acknowledge everything OK, I will immediately return the favor.