4mm OD Ruby Pearls Balls Insert (10 Pack)

really brings out the flavor

Manufactured Rubies, perfectly free of flaws and mine received were all a perfect color match. Perfectly round, polished, no hole. I believe they’re made for higher temperature vape pipe valves but my use is for a long wearing jeweled movements in mechanical pivot arms. Am very pleased with the product I received. Would make nice jewelry items too. Long term wear TBD. Wish I could find them in 2-3 mm too..

These pearls are great I havent had any cracking and Ive been using them every day.

100% synthetic rubys. They turn to almost black when hot and back to that beautiful red when cooled and hit with a little swab of iso. I probably buy another set now I know theyre the real deal.

these rubies are more like, 2 or 3mm od. I am looking at a proper 4mm ruby right now, and it is huge by comparison

Really great product. I got the wrong size but that’s on me, will order from this company again if they have 6mm

Excellent quality ruby on par with other gemstones i own. For the dip dars that didnt educate themselves and left bad reviews,1.) Ruby turns black/ dark maroon when properly heated. 2.) Ruby does not have any where near the same thermalshock rating as quartz, i.e. it will explode if directly heated or heated unevenly. Read before write kids and life will get easy for you.

aren’t big enough to spin

Just as good as Ruby pearl co.

These are amazing I enjoy them very much and have no problems thus far!!