TOUGH PLA SLATE GREY FOR METHODMakerBot Materials for Method are manufactured to exacting diameter and quality specifications. Shipped in a vacuum sealed metalized polyester bag quality is preserved right up until opening. The Smart Spool provides valuable information including material type color and amount remaining via an RFID chip directly to MakerBot Print while a built in desiccant absorbs any moisture exposure during the material loading process. Tough Precision Model