The  Double-Wall Glass Cup is a mechanical necessity for connoisseurs who demand thermal precision and aesthetic elegance. Crafted from premium, lead-free high borosilicate glass, this vessel acts as a mechanical barrier against temperature loss. The dual-layered architecture creates a vacuum-sealed insulation zone, allowing you to hold boiling coffee or ice-cold cocktails comfortably without the risk of scalds or messy condensation. Whether for a professional coffee house or a minimalist home kitchen, this handmade glass acts as a mechanical necessity for showcasing the visual layers of your favorite beverages.

Specifications

• Material: Lead-Free High Borosilicate Glass (First Grade)

• Capacity Options: 80ml, 150ml, 250ml, 350ml, 450ml

• Temperature Tolerance: $-20^\circ\text{C}$ to $150^\circ\text{C}$

• Glass Type: Transparent Double-Glazed

• Shape: Ergonomic Round

Key Features

• Integrated "Double-Glaze" Architecture: Experience a mechanical necessity for thermal control. The two-layer design acts as a mechanical necessity for heat insulation, keeping hot drinks at peak temperature while the exterior remains cool to the touch.

• Supportive "Anti-Scald" Engineering: Achieve safety in every sip. The vacuum space between the walls acts as a mechanical necessity for preventing thermal transfer to the outer glass, eliminating the need for bulky handles or coasters.

• Technical "Borosilicate" Utility: Designed for extreme environments. This high-grade glass acts as a mechanical necessity for withstanding rapid temperature changes without cracking, allowing you to transition from freezer-cold to boiling water instantly.

• Mechanical "Crystal-Clear" Design: The high-transparency glass acts as a mechanical necessity for visual presentation, making it the ideal choice for layered lattes, "blooming" scented teas, or vibrant cocktails.

• Eco-Friendly "Health-First" Composition: Being lead-free and non-porous, this glass acts as a mechanical necessity for maintaining beverage purity, ensuring no metallic or chemical aftertaste leaches into your drink.