Feature
1. Brand new and high quality
2. It is used for tighting and protecting the original loudspeaker base
3. It can help preventing water dust moisture or other small things out from your loudspeaker base and make sure everything working fine
4. Easy to install just plug and play
5. Please double check inner diameter before purchase

Specification
Material: wood
Inner diameter: 14.5cm
Outer diameter: 18.5cm