Suitable for all types of media, including oils, acrylics, and tempera, these affordable portable packs are ideal for classroom purchase. What an economical way to introduce painting to beginners? These gessoed panels feature 3 oz cotton canvas on a 1/8" backing. The toothy surface grips paint well with minimal absorption, and the sides are turned under and securely glued. Choose from a variety of popular sizes in classroom packs of 24 panels.