"Yellow Art House Mahl Stick Rest clamps securely onto canvas stretcher, provides a convenient and stable place to rest a mahlstick while painting. 8 inch fits all standard 3/4 inch canvases. 15 inch now fits both standard 3/4 inch and 1 1/2 inch gallery wrap. Use on either side. Finished hardwood, steel hooks, plastic knobs with steel inserts. Allow up to 2 weeks for delivery."