36x36in. (3x3ft) Box-type Museum Wrap Canvas with Backing | Lazada PH
Float Frames for up to 7/8 Thick Canvases or Panels. U - Etsy UK
9"x12" BOXTYPE CANVAS FOR PAINTING, MUSEUM WRAP WITH BACKING PLYWOOD | Lazada PH
Boxtype Artist Canvas and Frames - BOX TYPE ARTIST CANVAS AVAILABLE SIZES & PRICE LIST: 10 x 10 (with plywood) : Php 180 12 x 12 (with plywood) : Php 200 16