There have 12G(2MM),10G(2.5MM),8G(3MM),6G(4MM),4G(5MM),2G(6MM),0G(8MM),00G(10MM)sizes available,please choose your size. Gauge: 2G=6mm;Total Height:10mm Colors: Pair of Black + Pair of Gold + Pair of Rose Gold + Pair of Rainbow + Pair of Blue + Pair of Steel You will receive 6 pairs of stainless steel single flared ear plug tunnels of the size you select. Package Included: 6 pairs (1 pair for each color) tunnel plugs, come with one gift velvet bag. Description:You will receive 6Pairs Mix Color Same Size Ear Tunnel Plugs Stretching Kit 12g - 00g Which Size You Choose.