· COMPATIBILITY: Compatible with JBL Tune 230 NC TWS / T230NC· SPARES: Replacement set of silicone tips for lost or damaged Tune 230 NC TWS / T230NC ear bud covers· SOFT SILICONE: Flexible and tear-resistant silicone ear tips for anti-slip and comfortable in-ear listening· SIZES: 3 pairs of earphone tips in sizes S, M and L; easy to install and snap into place hassle free· NOTE: Please check the individual requirements of your headphones when removing your old ear tips