Gibraltar Port Hole Protector Rings are designed to protect the ported hole cut into your bass drumhead. Available in 4 to 6-inch sizes, these two piece rings snap onto both sides of the bass drum head providing extra protection.

Features

• Enhances sound and allows for microphone placement in your bass drum
• Two piece protector rings sandwich the bass drum head for solid hold and protection
• Easy to install
• 1/pack