Bottle of Bach Tuning Slide & Cork Grease
(red gel which was previously branded as Conn Selmer in a white bottle)
This tuning slide and cork grease is suitable for all brass and woodwind instruments to prevent tuning slides from sticking and to keep corks moist also aides assembly. Due to the strength of grease (has a thick gel consistency), it is only necessary to apply in small quantities. Because of this, a single bottle has an extremely long use life.