Shop › Knock Ballpoint Pen Knock Ballpoint Pen $4.00 A ballpoint pen with black ink and 0.7mm tip by Penco. Dimension: φ0.4” x (H)5.5” A ballpoint pen with black ink and 0.7mm tip by Penco. Dimension: φ0.4” x (H)5.5” Color: Vivid Pink Turquoise Blue Light Blue Add To Cart Added! You Might Also Like Soolla Studio Artist Bag, Becca Sands, Crochet Project Bag $69.00 Soolla Studio Artist Bag, Sunset Mustard, Journaling Bag $65.00 Soolla® Studio Pouch, Sedona $45.00 Sticky Memo Pad/ Monthly | Pink $9.00 Free Notebook/ B6 $6.00