Fuguang Double-Layer Glass Cup, Business Tea Infuser Mug, Large Capacity Heat-Resistant Office Water Bottle with Filter And Handle, Silver, 320ml

High borosilicate glass

Food-grade silicone

304 stainless steel (tea infuser)

Double-layer high borosilicate glass with low air volume between layers for insulation and durability

Thickened glass bottom for temperature resistance and stability

Resistant to sudden temperature changes from -20°C to 100°C

Transparent double-layer glass body with 3D embossed printing

Special textured, lightweight, and sealed silicone lid with 360° leak-proof design

Thickened, smooth, and lip-friendly glass rim with precise threading for easy opening and closing

Integrated one-piece bottom design for enhanced durability and stability

304 stainless steel tea infuser with uniform filter holes for easy brewing of tea

Do not use powdered cleaning agents containing sodium bicarbonate, sodium carbonate, citric acid, or peroxides in sealed conditions as gas generation may cause glass breakage and injury

Avoid stirring vigorously with metal spoons inside the double-layer glass cup to prevent damage

Always check cleaning agent ingredients and precautions before use

Cup is sealed and leak-proof when inverted, passing strict leak tests

Large capacity office glass cup designed for daily use with durability, safety, and convenience in mind