The ALEKO 690E is a Powerful Heavy Duty Industrial Drywall Sander. Designed to help sand larger and hard to reach areas. The 690E model has a telescoping handle and comes with a hose assembly and 6 sandpaper discs. The 690E can be attached to a shop vacuum to collect the dust. The telescoping handle on the 690E gives it more versatility enabling it to be used to sand floors as well as ceilings. The 690E has an easy to reach on off button and the variable rotation speed as well. Terrific value and fast shipping.