Liquid Chalk Markers

Decorated my classroom window for the season using liquid chalk markers. Got them to review, quite cool.  https://www.amazon.com/s/ref=nb_sb_noss?url=me%3DA10KZYQC5RV0A5&field-keywords=chalk+markers really great. From the company:
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• ✅COLORFUL FUN FOR EVERYONE! Whether You're an Artist Looking For New Drawing Supplies, a Restaurant or Bar Owner Who Wants to Write Today's Special on Your Storefront, a Supermom Looking For a Fun Present for Your Little Angels or a Homeowner Decorating Your Home for Christmas, Then, Vellostar Dustless Neon-Colored Liquid Chalk Markers Are Right Up Your Alley! Our High-Density Reversible Marker Tips Are Built for Professional Use and Your Total Satisfaction!
• ✅WRITE ON ALMOST ANY SURFACE! Experience The Freedom of Writing on Any NON-POROUS Surfaces. Our Liquid Chalk Erase Pens Work Great On: Plastic, Metal, Glass, Mirrors, Windows, Blackboards, Bistro Boards, Whiteboards, Dry Erase Boards, Chalkboard Calendars and Much More! ⚠️CAUTION: CHALK MARKERS DO NOT COME OFF CHALK PAINT. Always Test First! Not All Chalkboards and Chalkboard Painted Surfaces Are The Same - Double Check Your Chalkboards To See If They Are Compatible with Liquid Chalk Markers.
• ✅EASY to USE and ERASE! No More Stained Boards, Dirty Hands And Ruined Furniture. It Doesn't Easily Smudge Once It Is Dried But Can EASILY Be Erased With a Clean and Damp Cloth From ALL Non-Porous Surfaces. Our REVERSIBLE TIP (chisel/bullet) Gives You The Option to Write In Fine and Bold Lines. Flip The Tip Easily & without Mess w/ Our NEW & FREE Set of Tweezers. Our IMPROVED Cap Design Keeps The Tips From Getting Damaged Over Time & Prolong Their Lifespan. So, Chalk It Up With A Piece Of Mind!
• ✅100% SAFE TO USE FOR EVERYONE - EVEN YOUR KIDS! Eco-Friendly, Water- Based, Non-Toxic, Acid-Free, and Odorless Liquid Chalk Markers W/ Washable Ink Is Great For Indoor & Outdoor Use! Produced with Nothing But Premium Quality Materials and Strict Quality Regulations, They're Absolutely Perfect for Everyone, Kids Included. Chalk Markers Love To Be Stored Horizontally After Each Use For Longer & Proper Functionality!
• ✅THE MOST VIVID COLORS AT THE BEST QUALITY – OR YOUR MONEY BACK! – GET Our 10-Pack Bright Chalk Paint Markers for The Price of 8-Pack. ADD Them to Cart and Unlock Your Creative Talent - The Whole World Is Your Canvas! Order NOW and Get a 30 Days Money Back Guarantee Hussle Free. Vellostar Is An Amazon Registered Brand. BE SURE YOU ARE BUYING from AN AUTHORIZED SELLER!"