3-Part Glass Roller Tops – 12 Pack with Caps – Fits 11 mm (0.425”) Neck Opening – For doTERRA, Young Living, Revive and Many More 5ml & 15ml Bottles – Leak-Proof, Rust-Resistant

I wanted to like these. Thought they were a value when my YL roller balls were outta stock. Is really hard to apply the oil sideways. Am afraid am missing some areas. The roller ball sits much lower than my usual YL roller balls. The case around the roller ball is what makes contact with skin if rolling sideways.So when I took the rollerball out of the bottle (like I have done hundreds of times with YL roller balls), the glass ball went flying across the room. Was then hard to get the case around where the roller ball had been. Now I can't put it back together.Wondering how people refill their bottles after the first time if this happens.Also I think these caps are way too big. They don't fit in my case. They are tall like a nail polish cap. I do appreciate that the rollerball is glass but doesn't seem well constructed.

They don't fit on all essential oil bottles

I no longer buy roller bottles. I recycle my EO bottles using these rollerball caps

These fit my 15 ml bottles really well, they do not leak, the ball does not fall out & it dispenses a good amount of product!

Love these little bottles. Keeps the essential oils safe from the light.

These bottles are durable and they don’t leak.

Rolls good.

They don't fit! I tried them on every size EO bottle I have.