This grinder is made of aviation grade aluminum, as you know, the material for aerospace is premium grade. It is the new design herb grinder , we are the only seller own this product, it is new grinder in 420 industry , designed with mechanical handle, it is retro and novelty. It is 2.5 inch in diameter, 4 parts of this grinder, the first layer with clear top and mechanical handle ,the second layer is teeth layer, the third layer is the filter net layer, the last layer is a pollen catcher layer, it also has a free scraper.
This product also have blue, green, black, silver, brown color for choose.
Aluminum Grinders are Safe
The melting point of aluminum is 1220 °F (660.32 °C) and the boiling point – the point where aluminum becomes a vapor – is 4566 °F (2519 °C). Because of the high vapor point of aluminum, no regular lighter will allow aluminum shavings in your herb to be inhaled.
In addition to that, it is very rare for an aluminum grinder to leave metal shavings. You might find some metal shavings in your aluminum grinder once you first receive your grinder but a quick wash will remove the shavings.
Aluminum is a soft metal but much denser than any herb or stem.
New Arrival high quality aluminum mechanical gear
Height :3 inch,Diameter :2.5 inch
4 Pieces with pollen catcher and free scraper
Clear top layer