Creative stationery cute student pen mermaid pen bullet ballpoint pen signature pen imitation needle gel pen ball pen, brand: flying stationery product material brand new ABS weight: about 10.5g Inner Core Specification: 1.0mm 0.5mm size: 171mm product style mermaid ballpoint pen/gel pen product features: novel mermaid shape, with beautiful and sunny colors, plus streamlined design that conforms to the feel comfort