15.5 oz mug, packaged in a printed open-faced acetate box, is made from new bone china and includes one pair of matching socks made from a cotton, polyester, and Spandex blend that fits shoe size- Women's US 9-13 // EURO 39-43 Men's US 8-12 // EURO 41-45. "Happy Birthday To You" text and accompanying design is printed onto the front of the mug, while the socks feature a sewn-in streamers pattern. Machine wash socks on a gentle cycle with cold water. To best preserve decals, washing the mug by hand is recommended. Dishwasher safe. Microwave safe. Looking for a sweet unique birthday gift? This sock and mug set scream happiest birthday to a special friend, coworker, sister, mom or grandma! Bubblegum pink colored socks and matching mug are a great way to celebrate their day. Tie the box with a pink ribbon and pair with their favorite sweet treats for a perfect all in one gift!.