History
The Xbone Chip was the mid-generation model in Dif-e-Yo’s compact Bone Chip lineage, produced around 2009–2010. At 52.5mm diameter and 34.7mm width, it was undersized relative to the standard Dif-e-Yo format but capable of full unresponsive 1A string play. Smooth dry-finish surface. It bridged the original Bone Chip (a rare 2005 collector piece) and the XS Bone Chip (2011) — a continuous evolution in undersized Dif-e-Yo performance design. Priced at $89.99.

