Features Easy to install and use, can collect up to 99% dust in the air. Made of high quality material, durable with long life. PU leather ring is placed around the dust collector cover to enhance sealing, so that the dust will not overflow. Compact size, light weight, convenient to carry and use. Work with 180mm or 230mm high power angle grinder, can install 180mm flap disc, grinding cup, etc. Specification: Item Type: Angle Grinder Dust Cover Material: Nylon Outer Diameter: 225mm Height: 32/38mm Pipe Port: Inner Diameter 39mm, Outer Diameter 42mm Clamping Inner Diameter: 48-76mm adjustable Suitable for installing grinding cup with about 23mm center height  Package List: 1 x Dust Cover1 x Accessory Package1 x Accessory Package List 1 x Dust Cover 1 x Accessory Package 1 x Accessory