It adjusts to five different positions for best cleaning. Fits Shark HV300 HV301 HV302 HV303 HV305 HV306 HV308 HV310 HV320 HV321 HV322 HV324 HV325 HV345 UV450 NR96 HV380 HV381 HV382 HV384 HV390 HV391 HV392 ZS350 ZS351 ZS352 ZS360 ZS362 UV380 Vacuum 450FFJ390 This item is a wearable part. Per manufacturer, normal wear and tear of wearable parts, which require regular maintenance and/or replacement to ensure the proper functioning of your unit, are not covered by this warranty. For Return and Refund, please refer to Amazon’s Return and Refund policy. It adjusts to five different positions for best cleaning. Collects dirt and debris while you clean. Fits Shark HV300 HV301 HV302 HV303 HV305 HV306 HV308 HV310 HV320 HV321 HV322 HV324 HV325 HV345 UV450 NR96, also fits HV380 HV381 HV382 HV384 HV390 HV391 HV392 ZS350 ZS351 ZS352 ZS360 ZS362 UV380 Vacuum.