YakGear 5lb Mushroom Anchor [01-0010-01B]5lb Mushroom Anchor The YakGear 5 pound Mushroom Anchor is perfect for anchoring kayaks, canoes, stand up paddleboards, and even jon boats in muddy, sandy, or weeded bottoms. The high level holding strength provides additional security with a wide area mushroom cap with drains in the base. Shaped like an inverted mushroom, the head becomes buried in the soft seabed and will normally sink to the point where it has displaced its own weight in the seabed