鍵輪 is read as かぎわ (kagiwa) and means key ring.
かぎわ
kagiwa
こうりん
cantle
ゆびわ
(finger) ring
わ
circle (e.g. of friends)
しゃりん
(vehicle) wheel
ねんりん
experience in life
ぜんりん
front wheel
ごりん
Olympic rings
うちわ
conservative (e.g. estimate)
さんりん
three wheels
けいりん
keirin
りょうりん
two wheels
はなわ
wreath