Features:Drilling to connect dust, reduce extra noise, keep away from dust.Rubber material: Made of high-quality rubber material, high elasticity, good dust-proof effect, strong and durable.Wide application: suitable for engineering installation, air-conditioning installation, wall drilling, etc.Product use: Used for ceiling drilling work with electric drills to catch dust.Can be used on a variety of household projects that require drilling to keep floors and surfaces dust-free for easy cleanup after the project.Suitable drill size: below 8mm.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription: Material: RubberSize: As shown