Description The 3D Printing Pen Heads are designed to provide reliable performance for long-term use. Made from durable materials, these pen heads ensure durability and reliability, allowing you to use them for extended periods without any issues.The installation process is simple and easy, requiring no professional skills to complete the replacement. Achieve accurate and precise printing results, making your artwork more exquisite and unique. Features -Color:As Shown -Material:Plastic -Size:4.90X1.80X1.80cm/1.93X0.71X0.71in -The 3d printing pen accessories are made of durable and reliable materials that ensure extended use without any wear and tear. -These accessories are compatible with various 3d printing pen models, making them a versatile choice for artists. -The installation process of these accessories is convenient, allowing users to quickly switch between different pen heads. -The precise and detailed printing effects of these accessories, making them an essential tool for any artist. -Easy to install,integrated inserted design make this nozzle easier to be replaced.Package List1 x 3d printing pen head(5v) 1 x 3d printing pen head(12v)