Pine wood keys for tightening canvas
Use on the back corners of stretcher bars
Tap them in to increase the canvas tension
For use with light and medium duty stretcher bars
One package of 8 keys
Pack of 8 stretcher bar keys made for use with both BEST Light and Medium-duty stretcher bars. Made from pine, these keys fit into the corners of stretcher bar frames. Inserting them will cause the stretched canvas to tighten - removing any sagging. Use as needed - not all corners may require keys.
Best Light/Medium Duty Stretcher Bar Keys 8/p - B0713ZZNM6