These things are AMAZING! Linkyo wet erase liquid chalk marker pens the first thing I tested them on was my sliding glass door. The markers were very easy to use. You shake them up like a can of spray paint and then you just dab the end of the pen onto something like a paper towel or newspaper to get the ink flowing. it took about 3-6 presses to get the ink going. this set comes with 20 fabulous colors. They are all very vibrant and stand out wonderfully. I will be using these for everything!And the best thing about it that the whole family will love using these. especially the kids...

Metallic gold & silver markers complete this artist-quality 20pack of vibrantly colored chalk marker pens comes with two free replacement tips. long lasting and quick drying. Get the ook of chalk without the dust & smudging. Erasable on non-porous materials, permanent on porous materials (PERMANENT ON CHALKBOARDS!) Non-toxic 100% water based. No dust, fumes or harsh chemicals which makes it safe around children and animals. Fun and practical perfect for crafting and DYI projects, teaching, kid's crafts, office brainstorming, or a restaurant menus, window decorating, personal messages & reminders .

I received this product at an discounted price in exchange for my honest and unbiased review. 

http://www.amazon.com/20-Pack-LINKYO-Including-Erasable-Artist-Quality/dp/B014GGP9CM
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