How to tell if it is genuine silicone?

I want to order a dildo from Amazon, it has good reviews and it is said to use high-quality silicone. “Soft and Flexible Liquid Anal Dildo – Our realistic strap-on dildo is made of double-layer liquid silicone, which is body-safe, soft, skin-friendly and odorless. The outer layer of this anal plug adult toy is soft skin tissue, and the inner layer is hard sponge” and “We use high-quality safe silicone to make this men’s big dildo, the color and texture are as realistic as the real thing. From the glans, penis skin, veins to testicles, they have been restored in the most realistic way” are quotes from the Amazon description. It sounds legit, but I’m new to all this, so I’m not sure if it’s legal?

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