the common colors are :white ,black,brown,grew.but color can be customized for u ,merely(however),need extra 3-4days ,and the minimum quantity is one 20FT.price is the same as the common
5.2inch size:

thickness：gutter 3.2mm (dural wall). downspout 1.5mm
weight: gutter 0.97kg/Mtr  downspout 0.67kg/Mtr
7inch size:

thickness :gutter 2mm(single wall),  downspout:2mm
weight: gutter 1.17kg/Mtr   downspout 1.07kg/Mtr
the packing:
double layer board caton for the accessories(展示照片）
polythene transparent film for the gutter and pipe
the service life(guarantee use time):
12-15years