This is the Ankle Adjuster Splitboard Binding Part by Spark R&D.
Produced in-house with a unique thermoplastic that maintains flex over wide temperature variation (ie: this performs well on spring tours as well as sub-zero suffer fests).
Purchasing as a backup? Consider a full Backcountry Kit to keep your pow day from being cut short.
Includes: 1x Ankle Adjuster
The ankle adjuster is compatible with all Blaze, Burner, Tesla, T1, and 14/15 Burton Hitchhiker bindings.