Spiral Pattern Copper Coasters / Set of 6

Dimensions: Length 8 cm x Width 8 cm x Height 1 cm Material: Copper Crafted: Handmade in Taiwan Care Instructions: ⭕️ For regular use, clean with detergent and a soft sponge. ❌ Avoid abrasive materials like steel wool or rough scouring pads, as they can scratch the surface texture. ⭕️ Prolonged exposure to acidic or alkaline substances (sweat, hot spring sulfur, tea stains) may cause oxidation and discoloration. In such cases, use the provided special polishing cloth dampened with detergent to gently scrub away the oxidation, then rinse with water. This will help maintain their pristine appearance for a long time.