千里鵝毛

cin1 lei5 ngo4 mou4

goose feather sent from afar (idiom); a trifling gift with a weighty thought behind it · also written 千里送鵝毛|千里送鹅毛[qian1 li3 song4 e2 mao2]{cin1 lei5 sung3 ngo4 mou4}