Item Type: 3D Pen Filament Material: PLA Length of Each Roll: Approx. 10 Meters / 10.9yd ( Manual Measurement, Slight Error May Exist )1Safe Material: These 3D pen filaments are made of premium and eco friendly PLA material, safe and nontoxic. 220 Rolls: You will receive 20 rolls of 3D pen filament refills in assorted colors, meeting your different needs for printing. 310. 9yd Per Roll: Each color of these 3D pen PLA filaments is approximately 10. 9yd long, giving you more options for creation. 4Smoothing Experience: These printing pen filaments provide fast molding, no cracking and no clogging of output ports, giving you a smoothing experience. 5Perfect Gift: These print pen PLA filaments in assorted colors are great gift set for your kids and art lover to have fun with crafting and drawing. 20 x Roll of3D&nbspPen&nbspFilament