CK-Ject dental needles utilize a strict grinding angle with tri-bevel points that protect the gum without damaging tissue or causing swelling. Characteristics: - Highest quality silicon coating greatly minimizes pain and allows for a smooth repeatable injection. - Heat-treated pipes are super-elastic. - Super adhesion of color-coded plastic hub for easy identification and prevention of slips. Specifications: - Size: 30 Gauge. - Length: 21 mm.