Fetish Fantasy Series Crystal Nipple Clamps. Make your nipples perk with pleasure with these beginner style Crystal Nipple Clamps. Made with durable metal clips and covered in soft rubber liners, these clamps are perfect for beginners and fetish enthusiasts alike. The amount of pressure you apply to the nipple is adjustable by turning the screw, while the hanging crystals add a touch of elegance and style! Specifications: Material Metalclips, rubber liner. Country of origin China. Harmonized Tariff Schedule HTS Code 7117110000. Pipedream Products Catalog featured in Fetish Fantasy 2013 Volume 7 page 17.