The slim canvas has an approximately 2cm /0.8" thick wood stretcher bar, while the thick canvas has an approximately 4cm /1.6" thick wood stretcher bar-Coated fabric, a blend of cotton and polyester, for our canvas substrate. This provides a weight of approximately 300-350gsm/110-130lb cover and a thickness of 350-400 microns-hanging kit included, which may vary depending on the country of fulfillment.-shipped in protective packaging and strong boxes.printed and shipped on demand. No minimums are required.