Retail package as shown, batteries included, one size fits most, From the manufacturer: "The world�s 1st stick-on nipple vibe! Use these sassy Pasty Vibes alone or with a partner. Wear these heart-shaped Pasty Vibes comfortably under clothes or give them as a gift. Each vibe has a separate On/Off switch and offers 30 minutes of vibration. When they are done, simply throw away. These pasties contour comfortably to every breast and nipple size. Tickle your fancy with Pasty Vibes!" Made in the USA.