A preservative for natural plants you want to reuse in dioramas, such as branches or small plants. Leave the branch or plant in the jar overnight: the product replaces the plant's sap, which keeps it from wilting or being damaged. Treated plants can also be painted with acrylics, and the treatment helps stop colors fading as chlorophyll breaks down. The jar is wide enough to hold plants without difficulty. AK Interactive AK8042.