Home Writing BETA BAMBOO. Bamboo ball pen (81011) 🔍 BETA BAMBOO. Bamboo ball pen (81011) Bamboo ball pen with clip and metal details. Blue ink. ø11 x 141 mm Add to quote Category: Writing Tag: Pen Related products WARHOL. Roller pen and ball pen set in metal (91836) HALEY. Roller pen and ball pen set in aluminium (91899) LOUVRE. Ball pen in metal and gold-plated elements (91489) SINATRA. Ball pen in aluminium (91837)