This multifunction stationery combined vernier caliper with ballpoint pen, ideal gift choice for student Black gel ink pen with 0.5mm tips for you to create a better writing experience, suitable for writing This gel ink pen vernier caliper is made of abs material, high strength, and practical to use This ball-point pen length is designed with 15cm length, easy to carry, and comfortable pen Use this for months and years with this writing, black-inked pen, providing great writing experience