Stoner Vibes Nipple Clamps are perfect for beginners and advanced users. A fun cannabis charm dangles at the end of each one. The clamps include removable rubber tips, providing a softer feel against the nipples. The amount of pressure you apply is adjustable using the screw. Use them on their own or with our fully interchangeable bondage gear companion products from the Stoner Vibes Chronic Collection. Directions for use: Hold it under direct incandescent or LED light or sunlight for 10 minutes to activate the glow.