My husband found this little silicone thing in the sink while doing the dishes. I have no idea where it comes from, but I swear I've seen it before. Ideas?

The pressure cooker connection: what is a float valve seal?
After some research and consultations with friends, we discovered that the mysterious silicone object closely resembled a float valve gasket of a pressure cooker. This small but essential component is often overlooked, but it plays a crucial role in the operation of many modern pressure cookers. The seal fits perfectly around the float valve, which helps to regulate the pressure and ensures that the stove operates safely and effectively. Its design and material make it heat and pressure-resistant, which is why silicone is the material of choice for such applications.

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