Excalibur Crossbow Ex-Oil -Trigger and Hardware Oil 92899. Ex-Oil comes in a convenient container that will allow for precise placement into your triggers working parts and it is scent free. Specifications for Excalibur Crossbow Ex-Oil -Trigger and Hardware Oil: Manufacturer: Excalibur Crossbow Color: Clear Additional Features: Lubrication Package Contents: Excalibur Crossbow Ex-Oil -Trigger and Hardware Oil Scent-free Ex-Oil is a superior all-purpose lubricant that will keep your bow and its trigger mechanism functioning flawlessly. The convenient container allows for precise placement into your triggers working parts.