Winter's Secret Glow Hollow out Luminous Round Shape Pendant Open Alloy Necklace Chain length 24" pendant length 1" width is 1" weight 10g Steampunk glow in the dark necklace Pure manual carefully packaging for you,Normally, the transportation time is about 7-15 days. Glowproductsareultravioletabsorptionbestabsorptionduringthedayinthedarklight,sorepeatedcycles.Pleaseyoureceivethegoodsafterabsorbinglightinthesun,thenyoucanseetheglowinthedark.Becausethegoodsislessthanafewdaysabsorbinglightintheexpressparcelsintransit,sotheabsorbancecan. This is a beautiful, silver plated round shaped pendant which shows a gorgeous blue glow in the dark.The stronger the light is and the longer it's left under the better and longer-lasting the glow will be.