Attach Flatbacks faster than ever with the CrystalFX glue syringes and tips. This set includes four glue syringes with two caps, two 18 gauge pink tips for use with crystals 12ss and larger, two 20 gauge yellow tips for use with crystals 12ss and smaller, and basic instructions for use. Each syringe will hold your glue and allow you to place a small dot of glue onto your working surface, for perfectly placed flatback crystals every time. Use with Gem-Tac adhesive. Pick up tool and flatbacks sold separately.