If you want the versatility of a brush in the convenience of a pen, look no further than this brush pen set from Sakura. The durable and flexible brush nibs respond to changes in pressure and direction and were developed to provide bounce and retain its shape. The archival ink is deep black and waterproof.
Each pen measures 6 1/8" long x 3/8" diameter capped. Rounded triangular that posts and keeps the pen from rolling. The tips for the different sizes are made of:
FB – a tough plastic polyacetal material
MB – a tough nylon material
BB – a tough porous polyethylene material
Set of 3 pens, one of each size. Black archival ink. Made in Japan.
Care recommendations: Always replace the cap when not in use, don't leave uncapped for more than 20 minutes, store horizontally, do not drop/shake/spin as it may cause damage or leakage.