Crevice tools are specialized vacuum attachments designed for cleaning hard-to-reach areas. The standard crevice tool, a long, narrow attachment with a tapered end, is ideal for tight spaces like between couch cushions, along baseboards, and in corners. For added versatility, flexible crevice tools have a bendable neck, allowing them to reach around corners and into tricky spots, making them especially useful for cleaning around and behind heavy appliances or inside car interiors. Extra-long crevice tools, extending up to 20 inches or more, are perfect for deep, hard-to-reach areas, such as under appliances, under low furniture, around large shelving units, and into HVAC vents. For even narrower spaces, a slim or skinny crevice tool is the best choice, ideal for sliding door tracks, tight gaps between tiles, or narrow spaces between cushions and wall edges.