Photobloc orange tube with flexible stainless steel needle and green plastic plug. Much easier to place composite especially in molar post holes. Other brands stir and heat composite and mix in dentine primers causing premature set. Also they don’t always get the cement fully down the canal. Centrix needle tubes are fool proof and make cementing posts predictable, easy and non stressed. Ideal for delivering low viscosity filling materials e.g Bisfil 2B into tight spots, pot holes etc.