This mug is a perfect gift for your sister-in-law who married your brother. It will make her smile and laugh every time she uses it. High-quality ceramic material 11 oz capacity The design on the mug reads "I Smile Because You're My Sister-in-law, I Laugh Because You Married My Brother" making it a unique and personalized gift for any occasion. The high-quality ceramic material ensures that the mug is durable and can withstand daily use. The 11 oz capacity makes it perfect for enjoying hot beverages such as coffee, tea or hot cocoa.