Extra Small - Earphones Plus brand replacement earphone tips 10 pair assortment: 4 memory foam earbuds, 4 triple flange ear tips, and 12 standard replacement ear cushions For ear canal fitting earphones with connection size of approximately 11/64" (4.2mm) up to 7/32" (5.5mm) 2 pairs, silicone tri-level tips, 6 pair silicone standard tips, and 2 pair memory foam earbuds Each model also sold separately on Amazon - click on the EarphonesPlus link above Please email Earphones Plus with any questions, we're happy to assist you with sizing! Same assortment in other sizes (use SKU as keyword): Small - S-TRI2-SQ2-B6-CLR; Medium - M-TRI2-SQ2-B6-CLR; Large - L-TRI2-SQ2-B6-CLR