Crystal FX Glue Syringes & Tips by Bead Smith. Set includes: - 4 x Glue Syringes - 2 x Syringe Caps (to seal with glue inside) - 2 x Green Tips (14 gauge) Ideal for crystal size SS12 and larger. - 2 x Purple Tips (16 gauge) Ideal for crystal size SS12 and smaller. - Basic Instructions