wd188WD188 and WDGP in Cartridge packaging are common products with fixed colors. WD188 is only available in transparent, while WDGP comes in black, white, and transparent, so there's noWD188 and WDGP in Cartridge packaging are common products with fixed colors. WD188 is only available in transparent, while WDGP comes in black, white, and transparent, so there's no