Suitable for Professional interview microphone.Square shaped design, large place to show logo, can be engraved with PVC board by yourself or pasted by multicolor printing sticker.Color: mainly white. Material: durable hard ABS plastic.Simple and practical design, and easy to carry.Size (L*W*H): about 6.7 x 6.7 x 5.1 cm. Hole diameter: about 3.9cm (internal with adjustable foam).