The Pinnmoors work the best with very thin sharp pins. The yellow headed quilters pins do not work that great with them. The only pins I use are patchwork pins from Clover or Fons and Porter thin glass head pins. The Pinmoors do not fall off for me. I had one go through the washer and dryer with a Pinmoor still stuck to the pin. I don't understand the shock of the price though. They last a life time, self healing, and do the job. I bought 4 packages of 200 each when they went on sale I am always losing a handful when I take some to guild. Everyone wants to borrow a few and I rarely get all of them back.