Great invention! Woks great! Goulet Pen's order system and customer service are a breath of fresh air.

It looks nice, feels nice. I got this along with my 700R vac pen. I haven't been able to use it yet, unfortunately, because the pen itself came defective and is in the return process.

Not a must have, but I’m glad I bought it. I ordered it with my vac 700 just to help qualify for fee shipping. I followed the advice from the video and made sure the cap was tightly sealed while in use. Worked perfectly and allowed me to get a complete fill without worry.

Bottle works well!

Very good - works just like the demonstration video! No drips - excellent!

I don’t know if it’s just mine, but I’ve tried to use this twice now and it leaks a bunch of ink out. I followed all the instructions, watched videos. I inspected the bottle and cap and I don’t see any chips. I don’t think I did anything wrong, so I don’t know if mine is broken but now I have ink stains everywhere.

Works well - If you **** the lid on securely (as recommended). If not makes quite a mess.

This custom TWSBI ink bottle makes it easy to get a full fill on your TWSBI vacuum-fill pens. DO WATCH the video at the bottom of the product page. And you really want to put the cap on the clear bottle VERY tight! The threads on the bottle and cap are strong, and the sealing gasket is stiff, so tighten it until it won't move any further. I had a leak the first time I used it, but after tightening the cap properly it doesn't leak. (The first time you use it, do it over a pan or sink just in case your "tight" isn't tight enough.)

Decent traveling well. Little long.

My experience was very different and nothing like the videos on the same product.

This bottle makes filling the Twsbi vac pens a snap. No guess work and you can fill the pen to the very top.

I have only used it once, but I think this is a much better way to fill than putting it in the regular ink bottle! I am very glad I added it to my purchase.

I was amazed at how easy it was to actually fill my pen with no mess at all. I watched your video to help me figure it out.

I bought this to go with my twsbi vac700r and it works great, definitely worth the money and as usual the service here is excellent

Order complete and in excellent condition. Vac 20 very handy for 700r filling. Being a lefties, I like the bernanke series. At some point try other fast dru inks.

This is a cool little piece and it's sat in my drawer ever since I bought it. The problem is that a regular TWSBI Vac holds a great deal of ink so you're not using it that often to begin with. The drill of filling the separate bottle then filling the pen seems silly if you're only doing it rarely. This make a lot more sense if you have the Mini.

I like it. It doesn't fit my 580AL with the ****-in, but I knew that when I bought it. It holds plenty of ink to refill a pen at work a few times before I need to take it home and refill it. I haven't had to refill my Vac700 yet to see how it works.

Filling my TWSBI Vac pens couldn't be easier. No mess and a complete fill using this handy ink well. If you have a TWSBI Vac you must get one of these.

This was his favorite birthday gift. He had high expectations of this item and every one of them was met!

I bought this to go with my new Vac mini and it is the perfect accessory, making filling th epen easy and efficient, and clean too! It's a lovely thing in it's own right too. Highly recommended

I was meaning to buy it for a while and finally jumped; bought the Heart of Darkness ink alongside it on the suggestion of the Mr Goulet (it even comes with a cheapo fountain pen to give away). I also bought the inkwell for it, so I can inject-pump the vacuum plunger as if the pen was a syringe; no instances of drying during use, though one strange incident of blotting (a drop spilt when writing, creating a blot of black on the paper).Overall a great pen to look at when you're with writer's block. They suggested in a video to unscrew the top cap a wee bit if the pen seems to dry out, but so far I've not yet had this problem.

Tremendous product. A must for everyone. Makes reloading a breeze! Consider reminding people ordering a TWSBI Vac 700 to buy one, or perhaps provide a small discount when you purchase one along with a new pen.

I really enjoy the inkwell, I'm ready to purchase another one. The only concern I have when refilling my Vac700r it leaks a little in comparison to Twsbi mini, it's nothing major.

I ordered (cheapest delivery) and 3 days later in the caribe I was enjoying my twsbi. Thanks.

Bought this to fill my Vac Mini. Using blue ink at the moment. Will be buying another for black ink

I wish all pens could be filled using this devise. It's amazing. I'll be getting one in each color.

Does what it says on the tin. Very easy to use. Wish it had a nicer look & feel, but hard to beat the value.

I bought this to make refilling my pens easier and it does that very well but I have also used for flushing my pens AND mixing inks! This is a great tool to have in the drawer, I highly recommend it!