Key Observations:Material Appearance: The substance is a thick, translucent-to-opaque white solid block typical of raw, uncured silicone bases prior to mixing, molding, or extrusion.Markings: The rolls are handwritten with "1.5", which typically signifies technical specifications such as the thickness (e.g., 1.5 mm), weight (1.5 kg), or a specific grade ratio needed for production recipes.Packaging: They are wrapped tightly in protective clear plastic film to keep the uncured material free from dust, debris, and environmental moisture before processing.