Includes one 50g bottle of liquid UV glue.Flashlights and UV glue are sold separately. It's great for so many things:- gluing parts together- repairing broken pieces- clear lenses for headlights and gauges- filling small holes (it can be sanded)- making semi-transparent printed parts more clear- and so much more This is not the same as the semi transparent resin for 3d printers. Flashlight A required 2x AAA batteriesFlashlight B requires 1x AA battery Instructions- Apply a thin layer using a small brush- Cure fully- Apply additional layers to thicken or fully cover area- If area feels tacky, it is not fully cure- Can be sanded and painted. Curing time- UV lamp/flashlight (36 watts) 4-6 minutes (estimated)- Sun light (sunny day) 5- 20 minutes - (cloudy) 20-40 minutes (estimated)May require additional time due to UV lamp wattage and/or weather. Precautions: Use only as directed. Keep out of reach from children. Hardening occurs under sunlight so avoid working outdoors. Hardening occurs when exposed to ultraviolet light. Use in well ventilated area. For added protection, wear gloves and protective eyewear when applying. Do not let the skin, clothes, furniture, etc. come in contact with resin. If it gets in eyes, immediately flush your eyes with copious amounts of water for at least 15 minutes. Seek medical attention if needed. Please keep out of reach from children.