... 4mm/3-5mm,etc. 3.color: red,green,blue, yellow,black,etc 4.usage: swimming pool. Glass beads for swimming pool, deluxe ... photo etch decoration. Color glass bead has the following advance:1) ... )Color: DK/LT blue, aqua, green, black,white, clear, red,yellow, pink, and so on (color can be ajusted as required)... irregular color glass ...