Gift: This makes for the perfect little gift for any Groot fan in your life, whether for a birthday occasion or simply a mid-week treat! Material: Ceramic. Capacity: 400ml. Dimensions: 14.2cm x 9.3cm x 12cm. Design: This adorable character mug is the perfect way to make your brew even more comforting with its tree shaped design, heart-warming face and root-like handle. Mug: Get a Groot inspired porcelain mug. Groot Inspired Porcelain Mug | Living Social | Living Social