So here's the bottle. I have one empty one and one filled with Private Reserve Sherwood Green (an awesome color by the way!). They hold approx. 6 ml of ink when filled to the top.
As you can see in this photo the threads of the cap are very secure. Apparently, earlier versions of this bottle had a very small screw section on it making them less secure than this version.
Here's an Esterbrook J (full-size) in the bottle. notice how the bottom is conical! This means you can suck the very last drops of ink out of this sample vial!
Really the only critique I could level against these awesome bottles is this: The mm markings (a very handy feature) can't be seen unless light reaches them from the backside of the bottle. Here in the picture you can see what I mean. The 5mm mark only shows because I'm tilting the bottle and letting light come through the back side. This is mainly due to the fact that the marking are imprinted inside the bottles. Aside from that these bottle are a must have for any FP enthusiast!
I ordered mine from Goulet Pens which I highly recommend you order from also. They have great prices and excellent customer service! With your bottles they also include sticker labels so you can label your inks!
Please, leave me a comment below and let me know what you think of this review and this product!
777 - Tyler Dahl