Nipple Grips Crossbar Nipple Vices from California Exotic Novelties. The Nipple Grips Crossbar Nipple Vices are designed for powerful nipple play. Twist the twin screws and allow the dual cross bars to get tighter and tighter on your nipples for an incredibly pleasing sensation. 2 multi-use clamps are included with your purchase. Play with both, or use just one at a time. These nipple vices allow you to play any way you desire. Plus, you can use them alone or with a partner. The fully adjustable crossbar design lets you control the pressure. Screw the crossbars closer together for a tight fit, or move them further apart for a looser fit. These nipple vices offer a totally customizable pleasure experience, and the full, adjustable design allows for use on all body types. These clamps are made of heavy duty metal that is non-tarnishing and nickel free, making them body safe and long lasting. To keep your products clean, simply wash with warm soap and water or our Cal Exotics toy cleaner and let dry. Color Silver. Materials Nickel Free Alloy. FeaturesPhthalate Free, Waterproof. 90 days warranty. Measurements 0.75 inch Fully Extended Inner Diameter. Bulk weight 1.7 ounces. Package 2.9 ounces. Package 0.5 inch by 4.5 inches by 8.5 inches.