The review title says it all. I cannot believe how well this product retains heat and the enhanced flavor experience. I purchased the semi-sphere as a less expensive way to dip my toe in the pool before spending the money on an insert. Now that I have had a "taste" of the sapphire life, I will be looking to purchase an insert in the future! Very happy with my purchase.
Perfect on every level for my pure sapphire insert!
Amethyst ruby makes it hotter this is great for lower temps and super long dabs
Love the clear one looks great when used with colored inserts, and the function is great
Holds some major heat! Throw in a 25mm banger or combo in the 22mm insert!