It is always smart to keep a scale near by when buying marijuana to make sure you are getting what you pay for. Some dealers will try to give you less that what they told you. This is especially true when buying large amounts of marijuana. If you are selling weed use a scale to weigh out your bags
A scale to weigh weed
If you need to know where to buy a weed scale for marijuana you can go to your local smoke shop or ebay
marijuana on a scale
if you are looking how to weigh weed on a scale it is not very hard.