This Brand New Aftermarket Replacement Diaphragm Use On Many Drivers & Tweeters (Voice Coil) 34.4 mm or 1.35" For Behringer, Gemini, Harbinger Cerwin Vega And Many Others Please Do Not Confused With Mackie SRM 450 (44.4 mm or 1.75") It Looks Similar. This One Is Smaller. This is a 34.4 mm (1.35"inches) 8 ohm Universal Tweeters Diaphragm Most Orders Placed Before 2PM and Paid thru PayPal Are Shipped The Same Day; Monday to Friday Voice Coil Diameter 34.4 mm (34.5 mm Universal ) Dome material Titanium Impedance 8 Ω Coil wire ALR Overall Dimension 62.5 mm（+/- mm) Total length 83 mm Install dimension 72 ±1 mm Origin of goods China Package include 1 pc