Just received my second order of these. They are the perfect travel or sharing size. I love how thick they are. The metal roller ball moves well, lets out the right amount of oil and I have had no problem with leaking. Also small but important thing, the oil stickers fit on the cap.
I LOVE these. Perfect size to give as a trial. Easy to carry in pocket or purse. My 5 year old grandson has one in his backpack for his favorite blend.