All three of our Solarez fly-tie UV resins. Each comes in a 5-gram tube (1/10 oz) with an applicator tip - ample for many lures. Contains one tube each of: Thin, Hard Formula: Super-hard scratch-resistant finish, Ideal for thin coats on fishing lure heads. Thin formula, easy to coat or saturate. Thick, Hard Formula: Hard, very viscous for making thick coatings or spheres - bodies, heads, eyes. Build fly fishing heads and bodies. Viscous formula, easier to work with. F-l-e-x Formula: Flexible finish for swimmers, flex parts - could be used as a wader repair. Great for coating knots for strength. Viscous formula, easier to work with. All three instantly cure with a hard, tack-free finish with sunlight or our Solarez UV flashlights. Usage tip: Apply in shade. Irradiate with intense UV light for ONE SECOND. Wait 15 seconds. Irradiate again for one second. Wait. Complete with 30 full seconds UV light. This technique will reduce heat & shrinkage.