Support, display, and preserve your larger works of art with Utrecht Heavy-Duty Canvas Stretcher Bars and Keys. Chosen by professional painters for their reliable quality and sure value. Corners are slotted and double-mortised, ensuring frames have perfectly square corners. 2-1/4" wide with a 1-1/4" profile. - Utrecht Heavy-Duty Stretcher Bar Keys - Pkg of 8Blick Heavy Duty Stretcher Bars, HD KEYS BAG/8 -