Craft Tools Rhinestone Tray Flips flatback Turn right side up & in-line / Triangle Magical Flips / Wax Pen / Glue Applicator / Silver Polishing Cloth (Glue Applicator (Green Tip-3 sets)) Product : Green tip is 18 gauge diameter - Works on thiner glue like Gem Tac Size : 3ml w/ needle length 1/2" Quantity : 3 sets This syringe glue applicator is great tool for DIY project