【Holding appearance design patent and pen structure patent】Holding appearance design patent and pen structure patent, the integral pen head can be removed and replaced separately. No need to unload filaments before continue feeding, filaments can be used up. There is no other printer on the market that can do the same. 【 Best choice for Birthday and Christmas presents】With trendy Appearance in cartoon dinosaur design, this product is a combination of 3D printing pen and art decoration. Adorable dinosaur shapes are popular with children, best choice for Birthday and Christmas presents. 【Perfect Educational Toy 】The 3D printing pen inspires creativity, design, planning, building and spatial understanding. A great way for parents and children to spend quality time together. 【Simple Operation and Not Easy to Break】Connect to power source, heat up and extrude to start your creating. Three-key operation and blue/green/red LED indicators make it suit for children and young people to let their imagination run wild. 【Safer and more durable】Support two filament modes and two speed levels. If there is no button operation, the 3D pen will automatically stop after 15 minutes, safer and more durable.