Name: tealight candle cup, polycabonate cup, Butter lamp shell Products specification: Usage: all kinds of candles, wax, tealight, butter lamp Material: flame retardant PC (polycarbonate, Japan imported Model no.: D-15 Size: outer: 39*18.2mm, inner: 37.5*16mm, weight: 3.4g/piece. Weight of wax holding:15g Burning time:4-4.5hours Packing: carton packing Quality approved: all of our products have got through the SGS combustion certification, met the international UL94 standards and our materials have approved by FDA in America. We have got through the ISO 9001 Quality Certification in 26th September, 2011. Agnes yang sales manager