Fetish Fantasy Series Butterfly Nipple Clamps. Make your nipples perk with pleasure with these beginner Butterfly 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 butterflies give you subtle stimulation with each movement. Specifications: Package Depth 1 inch. Package Width 7.25 inches. Package Height 10.5 inches. Packaged Weight3.10 ounces. Materials: Metal, Polyester, Rubber. Country of origin China. Harmonized Tariff Schedule HTS Code:7117110000. Pipedream Products Catalog featured in Fetish Fantasy 2013 Volume 7 page 15.