Pebbles Bocce Balls turn any surface into a bocce court and absorb the shock of impact. When thrown with the proper backspin, Pebbles Bocce Balls virtually stop right where they land. Moreover, their grippy pebble texture makes them very easy to hold in hands. Set includes four violet and four yellow 101mm bocce balls, one red 76mm jack ball and a carry bag. Ball outside material: PVC foam. Inside material: PE and sand.