Master Caster®, the maker of the ReStor-It Quick 20 Leather/Vinyl Repair Kit, recommends using two kits -- one for each arm.
Thank you for your questions about the Quick 20 ReStor-It Fix-A-Chip Repair Kit.
This kit is safe to use on veneer. It may require two or more applications to fill in deep gouges.
Hope this answers your question!