Koransha Good Luck Knot Pattern Teacups - Set of 5 This set features a "musubibumi" (knot letter) pattern, which is said to bring good fortune and symbolize the tying of good relationships. Teacup diameter: 9.2 cm, Height: 5.3 cm Purchased at Takasaki Takashimaya. I am selling these as I bought them for guests but never used them. Please refrain from purchasing if you are overly sensitive, concerned about minor details, or intend to return the item for a refund. Returns and refunds are not accepted to prevent product substitution.