TSK PRC Control Hub Needle 27g x 19mm PRC Control hubs are made using an extremely hard polymer preventing “flexing” of the hub when exposed to high pressures, which ultimately prevents leakage and needle pop-off. – Can Withstand 1.5x more pressure. – Ultra thin wall – Very good flow rate – 35% less extrusion force needed – Reduced risk of leaking – Ideal for dermal fillers – Pack of 100 Dermal fillers have a high viscosity and contain small particles that make injections more difficult. Regular needles can easily get occluded. To prevent this TSK has developed special dermal filler needles that have an ULTRA Thin Wall that increases the inner diameter of a 27G needle up to 24% and the inner diameter of a 30G needle up to 17%.