Wraptek Canvas Stretcher Bar Kit (36"x48") Wraptek Canvas Stretcher Bar Kit Easy DIY canvas stretching system- All you need is a small hammer, a razor blade and a phillips screw driver. Everything you need to for a successful canvas stretching experience. Available from 8"x10" to 48"x48"- Kits 18" and larger include a FREE wire hanging set! *Note the size you choose is the size of the face of print, you will need a minimum of 4" in height and width on the print to fully wrap the frame and staple the canvas to the back.