2 Holes Dust Cover: This metal engraving dust collector dustproof box and grinding dust box that requires no installation and comes with a light and fan.Technical Specifications: The Table Polisher Dust Box operates on an input voltage of 220v, and the fan frequency is 50 60Hz.Size: The Dust Box with Led measures 58.5cmx35.5cmx35.5cm/23.03inchx13.98inchx13.98inch, the fan size is 12cmx12cmx3.8cm/4.72inchx4.72inchx1.50inch, and the sleeve diameter is 11cm/4.33inch. Material: Dust Box is made from metal and transparent acrylic plate cover , it's designed to last.Versatile Use: This dustproof box can be used in conjunction with small machines such as table grinders, engraving machines, electric grinders etc., making it a versatile addition to any workshop or studio. Specification: Material: Metal Acrylic Plate Size Chart: 58.5cmx35.5cmx35.5cm/23.03inchx13.98inchx13.98inch Package Includes: 1 Dust Box 1 Dust Bag Note: Please allow slightly errors 1-2cm differences due to manual measurement.