1. Specifications: 24 pcs per box 2. Product name: Beat pen 3. Product color: black, blue, red 4. Product size: length 15.1cm 5. Product weight: about 11 grams 6. Product material: plastic, water-based ink 7. 3K35 beating pen: the refill is large-capacity, writing is more durable; press the design, more convenient to use; soft rubber sheath, writing is more labor-saving; ink is preferred, continuous ink is not easy to penetrate the paper.