Seems like most of the talk about sapphire and ruby spheres is spread between a few different threads. In an effort to help people find the info in the future, I thought it might be time to start this thread. The addition of the spheres allows you to vaporize your concentrates more completely, at lower temps. The spheres add surface area, thermal mass, and a stirring/spinning action. I had been wanting to get some spheres to add to my NewVape Vrod SiC dish, but had been unable to find the right size. It seems most of the spheres being sold now are 6mm diameter. That's great for bangers, but a little too large for a 28mm dish like the Vrod or DNail Halo. 5mm diameter has been reported to be the perfect size by several members. However finding 5 mm spheres isn't quite so easy. That was until @ChurroForSure-O shared an amazing source, www.swissjewel.com. Swiss Jewel offers tons of ruby and sapphire items for medical and scientific use. They have spheres of all sizes, and for cheaper than the cannabis sites selling them. I inquired about pricing for 4 mm, 5mm, and 6mm spheres. Both ruby and sapphire cost the same. The prices are: 4 mm: $4.85/each 5 mm: $5.80/each 6 mm: $8.00/each There were price breaks if you bought 25+ of each. Minimum order is $50. I just placed an order for 4×5 mm ruby, 4x5mm sapphire, 1x4mm ruby, and 1x4mm sapphire for $55.90 before shipping. Should ship today, hope to have them by the weekend. Can't wait to try them out, they really do look like a massive improvement in dabbing.