Quick Change Adjustable Carbon Battery Holder Set [0759-FD] WRAP-UP NEXT A quick-change type with tab fixation is now available for the adjustable carbon battery holder, which allows for a variety of layouts. Full-surface countersunk slit processing that supports various chassis. Vertical and horizontal, and position fine-tuning can be done freely. The plate part is made of 2.0t carbon and the holder part is made of 5.0t carbon. Changed from O-ring fixation to carbon tab fixation.