PiercingJ 1-4pcs 16G 5/16" Clear Cubic Zirconia Round/Heart/Square/Star Internally Thread Laret Monroe Lip Ring Stud Cubic zirconia + stainless steel thread + acrylic back cap Gauge: 16G (1.2MM) Wearable pin length:5/16" (8MM). cubic zirconia size:3mm; Cubic zirconia shape: round, square, star, heart. Quantity: 4pcs ( 1 pc for each shape)