MARK3 Etchant Gel 37% Phosphoric Acid, 1.2 mL Syringe, 4/Box. Contains: 20 pre-bent tips. Features optimum consistency to ensure material stays where it is placed. Dark blue color that create great contrast. Compare to Etch-Rite & Temrex. 4 x 1.2 ml Syringes with 20 tips