MakerBot Sketch Tough PLA Gray Filament is engineered for durable, strong, and dimensionally accurate 3D printed prototypes and fixtures. Featuring characteristics such as 2x the impact-strength of ABS and similar tensile and flexural strength properties, MakerBot Sketch Tough Filament is the perfect choice for users interested in creating highly durable and measurably accurate prints on their Sketch 3D Printer.