Technical Parameters: Diameter: 115mm/4.53" Shape: Dome Material: High grade paper Product Name: Speaker Dust Cap Package Content: 4pcs x Speaker Dust Cap Description: 1. It can be used for decorating the speaker, and it looks beautiful and generous, easy to use. 2. Dust cap protective dome is one of the audio maintenance or repair parts for speaker, woofers, subwoofer, and coils. 3.Protecting the speaker so that the speaker will not be easily pressed, it will not be filled with dust and will not soon become old. Note: 1.Please measure the size you need before you buy it, make sure our product is right what you want.