our EPDM granules have 0.5-1.5/1-2/1-3/1-4/2-3/2-4/2-5/3-5mm... and the colors have track red, green, appple green,red,yellow,orange,purple,light grey,light green, blue,dark grey, brown, rose, eggsheel, white, earth, dark blue, rainbow and so on, in all, we can do the size and color according to your concrete demand.