Use this ear stretching kit to get you from 1/2" to 9/16". You will receive one PAIR of tapers and one PAIR of tunnels in size 9/16". Tapers are black acrylic with 2 orings.. Tunnels are high quality hypoallergenic 316L surgical steel, single flare with o-rings. Easy insertion and lightweight. Use this kit to stretch from 1/2" to 9/16".