隔熱玻璃（附密封圈），銀色，3552 1.00L

The sealing ring fits nice and snug, so no more coffee leaking into my bag. It keeps my drink hot for hours just like the original one did.

The silver finish matches the rest of my flask perfectly, and the sealing ring sits snugly so there’s zero leakage. I’ve already washed it twice and the glass stays clear, no clouding. Exactly the right size for my 1-liter carafe.

This silver glass fits my old thermos perfectly—the double-walled insulation keeps coffee hot for hours without any noticeable heat loss on the outside. The sealing ring was easy to install and creates a tight, leak-proof seal every time I screw the lid on.