Gibson Lightening Bar Wraparound Compensating BridgeFrom the Genuine Gibson Historic Series, the "lightening" wrap around bridge and tailpiece is historically accurate to ensure precise intonation. Gibson Guitars is a household name because of its dedication to quality craftmanship. This dedication applies not only to the guitars, but to the whole line of parts that go into making them. Gibson Guitar parts are iconic and well known to be at the top of their class.