"Funfactory Smart Balls are an intelligent way to get your vagina in shape. Made of Elastomer, a mix of plastic and rubber, they are hypoallergenic and skin-safe. In order to gradually increase your resistance use insert the Smart Balls inside and go about your daily life. To strengthen the pelvic muscles during Kegel exercise practice holding them inside. Or use the included lubricant and place them inside prior to sex for amazing sensations. " (
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