One heart tsurikawa silicone mold for resin crafting! Size of demolded creation is 9.50 x 8.95 x 0.47 inches (9.5 x 9.0 x 1.2 cm). Mold Care Instructions: (optional) prior to pouring resin, you may apply a mold release onto the mold to ease demolding of the cured resin piece and help preserve the shiny finish of the mold. If mold release is not available, rubbing baby oil into the mold cavities is an affordable and equally effective alternative. Be sure to use epoxy resin intended for casting/jewelry making. Avoid table-top resins as these are known to overheat and damage silicone molds. Do not use a torch or excessive heat to pop air bubbles in the mold as this may cause the mold to adhere to the cured resin piece and damage the mold.