Features: Easy to apply and dry fast. Ingredients low odor. No sticky residue while finish off with top coat. Long lasting (21 Days+) with perfect shine. Product Specification: Volume: 8ml/0.27 fl.oz 2 Color:White,Black Required UV/LED nail dryer lamp,must be used with gel base coat top coat.(NOT INCLUDE) Package Content: 2PCS Black White Gel Nail Polish How to apply? Step 1: Prep and push back cuticles. Step 2: Apply RARJSM Base coat (sold separately), and cure under UV lamp (sold separately) for 60 seconds. Step 3: Apply colour in a thin application. Cure under UV lamp for 60-120s. Step 4: Draw the pattern you like,then cure under UV lamp for 60-120s. Step 5: Apply RARJSM Top coat (sold separately) and cure under lamp for 60-120s. Step 6: Wipe of sticky layer with a Shine Wipe(sold separately). Step 7: Enjoy your 21 Days Manicure. How to remove? Step 1:File off the top coat gently by nail buffer. Step 2:Use gel nail remover or soak cotton pad with acetone, and place on top of each nail. Step 3:Wrap each finger nail about 10-15 minutes. Step 4:Use a stick or cuticle pusher to remove the softened gel gently. Step 5:Lightly buff nails again when the gel totally removed. A Warm Tips 1. Don't apply gel on the skin and cuticle or the nail art design will peel off easily. 2. Keep the bottle of gel nail polish away from sunlight and not too close to your nail lamp. 3. The real color of the gel nail polish may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.