Wood frame with canvas backing to the purpose to develop. Our traditional canvas stretched (tux the penguin to the side to enter) can also be used to monitor. CANVAS filled Charger Replace your hammer, nails, etc. to hit, and do not bleach. This product is the ideal items to be used for float wood frame. [About the attached rubber] red urethane rubber that varies depending on the frequency used for draining. Glue at the moment when it is again filled a stripping. Except when you tear * Urethane Rubber itself