250-pack of durable and shatterproof plastic jump rope beads for making or customizing ropes. References * It takes about 100 1" beads to make a standard 9ft jump rope. Likewise, 50 2" beads will make a 9ft jump rope. * 85 1" beads or 42 2" beads will make a shorter 7ft jump rope (most standard size for kids). Bead Specs * 1" Beads: 6.5mm Inner Diameter (ID), 8mm Outer Diameter (OD) * 2" Beads: 6.5mm Inner Diameter (ID), 8mm Outer Diameter (OD). * 2" Heavy Beads: 7mm Inner Diameter, 10mm Outer Diameter * 1" Soft Beads: Ultra durable 1" soft beads made of a flexible and non-toxic TPU material that won't hurt arms or legs when hit with the rope. Soft beads are much quieter on hard indoor surfaces than traditional hard beads. Frequently purchased with a spool of braided polycord for making jump ropes.