Deluxe pair of GEWA adjustable cello case backpack straps. Removable steel cable lanyards for extra security. Also compatible with guitar cases that have backpack hooks.
(The GEWA tag inside may be labelled “rucksack strap for violin case” but the accompanying number references to the cello strap. They may also vary slightly at maximum extension, but can be adjusted to match without any issues. This is not a defect.)