RelyX Fiber Post kit comes with 15 Posts (5 of ea. Size 1, 2 and 3), 4 Drills (1 ea. of Size 1, 2, 3 and a Universal Drill), 20 elongation tips, instructions and technique card. When performing root canals, RelyX fiber posts provide consistant strenght and excellent result. The resin composition provides elasticty and mechanical strength to the post making them similar to human dentin which reduces the risk of root fracture. Excellent light translucency provides for efficient light cure deep into the root canal.