Get high-quality and highly resistant prints with black Leapfrog 1.75mm Engineering PLA 3D Printer Filament. Designed to fit their HS (XL), Xeed, XceL, and Bolt series printers, this filament has improved durability and strength over standard PLA with the same settings needed to print it. Additional features include a high ease of printing and low warping, with high layer bonding.