The Gekikan Nipple Pressure Crank Clasher Nipple Clamps are a pair of mini metal hand vises (linked by a chain) that you can tighten around the nipples, teasing your partner and stimulating their breasts in a whole new way. These are on the harder, more BDSM end of the nipple-clamp spectrum, but are a heck of a lot of fun if you feeling adventurous.
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