The Ohto NBP-507R Promecha is a needletip, ballpoint pen that is similar to Ohto’s more-popular Horizon and Horizon EU pens. It has an all-metal body and a knurled-rubber hybrid grip that is similar to the Pentel Graph Gear 1000.
The Lamy Noto is an affordable, all-plastic ballpoint that the company released in 2008. The pen was designed by Naoto Fukasawa, who is most famous for his Muji compact disc player.
The Explorer is a new fountain pen from Pilot, released in early 2019. It’s very similar to the popular Pilot Metropolitan, but it’s made of a lighter, plastic body. Additionally the Explorer is a bit more expensive then the Metro, it’s lighter, and its wider.
Please note, Pilot had another Explorer, an odd ballpoint pen from the 1990s. That pen is rarely seen these days and seems unrelated to this newly released fountain pen.
The Z24 is a fountain pen converter built for Lamy fountain pens. It was replaced in 2017 by the Z28, which looks almost the same and functions identically. The Z24 is fully plastic and has a black middle section where the Z28 has a metal band in the middle. The Z24 is a twist-style converter with a proprietary shape designed to only work with Lamy pens.
The Z28 is a fountain pen converter built for Lamy fountain pens. It is the replacement for the older Z24, which looks almost identical. The Z28 has a metal band in the middle but is primarily made of plastic. It’s a twist-style converter with a proprietary shape designed to only work with Lamy pens.
The Pilot CON-50 is a fountain pen converter that used to be included with some mid-to-high range Pilot pens. It was replaced by the CON-40 when it stopped being sold in late 2017.
The Pilot CON-40 is a proprietary fountain pen converter that fits all of Pilot’s cartridge/converter pens. This includes a wide range of pens but some are the Prera, Metropolitan, Vanishing Point, Cavalier, and Custom 74.
The CON-40 is a plastic, screw-type converter with an ink capacity of 0.4 ml, making it quite small.
The T10 is Lamy’s proprietary fountain pen refill. These cartridges has bean Lamy’s design for over 30 years and work with almost all Lamy pens, aside from the Lamy 2000. It has a 1.15 ml capacity and is made out of a hard plastic.
Lamy’s Scribble is mostly seen in its 0.7 mm mechanical pencil and 3.15 mm clutch pencil versions — as it’s designed to be a drawing and sketching tool — but it’s also sold in a very fun ballpoint version. The pen isn’t particularly cheap, but it’s highly portable, well-made, and comfortable to use in a large array of hand positions (this is more useful with the clutch pencil then the pen).
The JK is Zebra’s skinny gel refill. It is most commonly found in Zebra’s G-301 gel pen.
The Hi-Tec-C refill is the standard refill used on Pilot’s stick-type Hi-Tec-C, G-Tec, and Maica pens.
The Pilot LHSRF-8C is a plastic pen refill that uses gel ink.
The BRFN-10F is a plastic body Pilot refill that is found in the Dr. Grip pens as well as the Pilot Ageless and S20 executive pen. It’s a proprietary shape that only Pilot uses, which makes this refill difficult to swap out in place of another refill. The BRFN-10 is not sold in an extra fine model, for that you need to upgrade to the BRFN-30EF.
Pilot makes a higher end refill in the same shape: the BRFN-30F.
This refill is the metal version of the Pilot BRFN-10F. It uses Pilot Acro ink (an oil-based hybrid). This is a 0.7 mm refill, wher the BRFN-30M is a 1.0 mm refill. This pen is not commonly found included in pens but its rather sold as an upgrade for pens like the Pilot S20 and Dr. Grip.
This refill is the metal version of the Pilot BRFN-10M. It uses Pilot Acro ink (an oil-based hybrid).