This 50” heavy duty BEST stretcher bar is made for use with BEST heavy duty cross braces. The finger spliced pine is durable and designed to last for several years, and is free from splinters and other defects. These stretcher bars create even 45 degree angles and have a rounded back which stretches the canvas out tightly. Museum quality stretcher bars without the expense, and a perfect choice for artists of every skill level. Easy to assemble and won’t bow or break down like lower quality stretcher bars. These stretcher bars also protect your work from ghost lines with 1/2” of clearance between them and your canvas, ensuring that your work looks the same as it did when you finished it.