JAYO PA6-GF Nylon Glass Fiber Filament, Tough & Impact Resistant, Lower Abrasion Than Carbon Fiber, Heat Resistant to 214°C, Durable & Wear Resistant for Industrial & Mechanical Parts 1kg

Multi-pack bundles are the point — buying 4 or 10 spools at once brings the per-kg cost down sharply compared to individual purchases. Good for anyone running the same color through a lot of prints and watching their material budget.