Patty Both Interview Mic Microphone Logo Flag Station (BLACK) Color: black. Material: durable hard ABS plastic. Size (L*W*H): about 7.0 x 6.8x 5.0 cm. Hole diameter: about 3.8cm (internal with adjustable cotton). Simple and practical design, and easy to carry. Square shaped design, large place to show logo, can be engraved with PVC board by yourself or pasted by multicolor printing sticker. Suitable for Professional interview microphone.