The SMAFFOX 3D Pen SMA-1plus is a versatile tool ideal for creating intricate designs using the included 24 colors of PLA filament. With a tensile strength of less than 20 lb and a stretched bungee length of 10 inches, this pen offers flexibility and durability for your crafting projects. The blue color and plastic material make it easy to spot and use for a variety of designs. Additionally, the adjustable features and 48-meter filament length provide endless possibilities for creativity. Backed by a 1-month manufacturer warranty, this 3D pen is a reliable choice for any artist.