The Best Pro-Bar System prevents bending and warping resulting from humidity and dryness. The combination of the finest kiln-dried wood and specially milled aluminum create a strong and rigid support. Ideal for large scale painting.
Aluminum Corner L-Bracket Set - Best Pro-Bars must be assembled with Aluminum Corner L-Bracket Inserts (sold separately) Use four corners per frame, or eight corners for optimum strength. For larger canvases (36" and up) two packs are recommended. For use with Best Aluminum Pro-Bars only (not included). Sold in packs of 4.