... crystal powder.Average particle size range: 45~65um.Luminous color: Yellow-green.Free of dangerous, toxic, heavy metals, radiation. Friendly to ... application.Sample order quantity: 1kg.(Packed by vinyl bag, G.W. 1.15kgs, bag size: 180mm x 105mm x 20mm).Glow ... pigments and relative products. Products range:1. Glow in the dark pigments (glow in yellow-green, blue-green, sky-blue, blue-purple, red, ...