Graphite Gravity, Silver Elements
Graphite Gravity on the left, alternated with Silver Elements
Kinetic Copper, Golden Conduct
Kinetic Copper on the left alternated with Golden Conduct
So even though these shades appeared similar in the bottle, the effects were very different on the nail, especially once the magnet was applied.
Here's the directions from Sally Hansen's website:
STEP 1: Apply 1 coat of base coat. Shake Magnetic Nail Color to activate. Remove overcap with magnet and set aside. Apply 1 coat of Magnetic Nail Color to all 10 nails and let dry.
STEP 2: Apply a thick second coat of color to 1 nail and immediately hold the built-in magnet over the nail. Rest the guide just below the cuticle without touching the wet nail polish. Hold for 10 seconds. Repeat for all 10 nails and let dry. Finish with top coat.
Disclosure: These four shades were sent to me for review purposes.