Our medium-sized monkey's fist fire heads are constructed of 10mm 100% kevlar rope. This 4 strand knot is our standard size (approx. 3" diameter) and has 4-5 minute burn times (dependent on fuel and environmental conditions). Our premium tether option, this tightly woven, braided technora rope is roughly 11mm in diameter with a semi-static aramid core. This makes the rope ideal for tosses, yet flexible enough for all your tangles and wraps. The hardware-less setup gives complete plane control with no exposed metal. Comes with your choice of Home of Poi Expert knobs or UltraPoi's LED UltraKnob Pro handles. Sold as a set of 2. For sets of 3, please contact us for customization and pricing.