I spoke with customer service today and determined why they are not on the site or in stores. They have had too many complaints of the knot falling out. Apparently they are working on a new glue formula. I was told it might be challenging due to their no animal products policy. I have no idea what that has to do with modern glue, but hopefully they figure it out soon. I was lucky to have found one at one of the stores within 100 miles of me and they are doing a store to store transfer. Pretty good service for a $30 item. I look forward to receiving it. My badgers, boars and horses need a break.