Doc Johnson Platinum The Double Dip Cock Ring With Penetrator BlackDouble penetration is easy with the platinum Double Dip. Made from the high quality Platinum Silicone that Doc Johnson is known for, this probe is as soft and durable as it is sturdy. To use simply slip the cock ring onto the penis, over the shaft and you're good to go; stimulating your partner with the 4" penetrator beads that give that fuller feeling. Change up your options by wearing the Double Dip above or below the shaft for anal or vaginal