« See more Best Pro-Bar System

Best Pro-Bar is a stretcher bar system that will never bend, warp, or twist from moisture or dryness. It combines wood and aluminum to create more rigid support, perfect for large-format works, without the bulk and weight of heavy-duty stretcher strips. Made in the USA.

Best Corner Keys, Pack of 4 —

Use these corner keys as an optional feature with the Best Pro-Bar System, or with any other wooden stretcher bar, to quickly and easily adjust canvas tension. Tighten or loosen your canvas with the turn of a nut. The keys are easily installed into the pre-drilled holes on the Pro-Bar stretcher bars using the eight included screws.

Best Key Corner System, Pkg of 4
 (enlarge)
Purchase Item

Add Items to My List...

  • Saving an item or moving it to a list does not guarantee price or availability.

Add Items to My Cart...

Your cart is currently empty.

  • Prices, promotions, and availability may vary by store, catalog, and online.

FOB Factory

Factory Direct

Material Safety Data Sheet

Material Safety Data Sheet

Best is a trademark.® Richeson is registered trademark. ™ Pro-Bar is a trademark.