"The Tantus Cone is ideal whether you're starting out or already experienced. It makes a fantastic training tool and delivers exciting pressure. Wonderful to use with a harness and endlessly enjoyable for solo adventures. Harness CompatibleEasy To Clean: Eco-Friendly, Hypoallergenic, Hygienic, Boilable, and Dishwasher Safe.Note - Burgundy cones are firmer than the other colors."