Now you have available in Alchimiaweb the Spyral 4-piece grinder, made of coloured aluminium (body + teeth), so you can easily grind your prefered marijuana buds.
It has a metal screen on one of its parts which sieves the trichomes removed during the grinding process, which are collected on the bottom piece. Once you hace enough resin, you can collect it with the included spatula and enjoy your dry sift.
It measures 6cm in diameter and 4,5cm in height, being really convenient to use.