TRAMO Th24 Dynamic Clear Sound Universal Uni-directional Microphone Capsule for Weymic Sm 57 Sm58 Beta 58 Beta57,ideal for Most All Handhold Wireless and Wired Mics come with 1pc,Ideal replacement capsule for your mics FIT for your weymic beta58 sm58 shure sm58 fit for all your handhold microphone fit for your wireless handhold mics size:25.8*51.3mm, about 59g for net weight