There is no shortage of cannabis grinders on the market but the 'PenSimple' may take the cake for being the most discreet, quick and simple to use.
The grinder comes in the form of a pen that can be charged and requires the user to simply place the marijuana inside it and turn it on, leading to a perfectly ground leaf. The pen allows users to simply push a button and dispense the product where it is needed -- whether that be into a rolling paper, a bong or a pipe. On one charge, the device is able to dispense between 50 and 100 times and also works to store marijuana for later use.
As the prevalence of medical marijuana increases in North America, this cannabis grinder is an essential item for those who commonly use the medicinal drug for recreational or health purposes.