Böker Plus K.I.D. cal .50  sturdy ballpoint pen in a good pocket size with bolt action bayonet mechanism with pocket clip   EDC classic from Böker The Böker Plus K.I.D. cal .50 is the compact version of the popular CID cal .40! Not only due to its slightly more compact dimensions, this pen has become one of the most popular Every Day Carry pens of recent years. Slightly shorter, but minimally thicker, the cal. 50 offers an excellent handle position. Due to the rather classic clip, it can also be stowed very comfortably in the pockets of yor pants. The ingenious bolt action bayonet mechanism provides a pleasant mechanical feedback and also delivers that certain fidget and play factor - which makes this pen something very special. The K.I.D. cal .50 is offered in a variety of materials that carry a very different character. Brass is relatively heavy, feels pleasantly substantial, and develops a beautiful patina over time. Titanium appears very elegant, light, sturdy and always a popular premium option in the EDC community. Aluminum is also very light, offers all the advantages of the design, but is clearly easy on the wallet. Refill standard: Large capacity refills ISO 12757-2    Technical specifications Total length: 11,2 cm  Material: aluminium, brass or titanium Includes clip and bayonet mechanism