These are made for a quick grab and go, but it’s not just a plain ol piece either. The colors are created using pure silver fume, and can range from a nice light blue to yellow. However after some use you will notice hints of purples and greens as the piece gets darker. These are approximately 4” long and 2” wide and B about 90g. Disclaimer: This is handmade by yours truly and is definitely not intended for anything other than cbd use... Otherwise it's purely just a functional piece of art. Must be at least the age of 21 to purchase.