That’s a great question and a lovely story. Read about it here, in MY BLOG.

We don’t recommend placing our Highlighters on the vinyl card protectors. The Highlighters won’t adhere well and won’t last long. For optimal performance, our Highlighters need a smooth surface, like our custom-designed protective card Sleeves. These Sleeves are specifically made to work seamlessly with our Highlighters. While our Highlighters might temporarily stick to the vinyl covers, they won’t provide the same durability and reusability as they do on our smooth Sleeves. When used with our Sleeves, our Highlighters are guaranteed for one year and can be washed and reused multiple times. With regular washing and care, they should last even longer.

We strongly advise against using our Highlighters directly on your Mah Jongg card without our protective Sleeve. Here’s why. They’ll attract dust quickly, losing their stickiness. They won’t adhere well or last long. They might not be washable afterwards. Our Highlighters are designed to work best on smooth surfaces, like our custom-made protective card Sleeves. When used together, our Highlighters are reusable, washable, guaranteed for one year and built to last with proper care. For optimal performance and durability, we recommend using our Highlighters with our protective card Sleeves.

Yes! Don’t worry, we’ve got you covered! If you’re using the Highlighters with our smooth Sleeves, a gentle wash will restore their stickiness.

Here’s how: 1. Mix a drop of name-brand “Blue” degreasing dish soap with warm water. 2. Create a lather on your thumb and finger. 3. Gently rub both sides of the Highlighter. 4. Rinse under warm water. 5. Pat dry with a lint-free rag.

Voilà! Your Highlighters will be good as new. For a visual guide, check out our video on Washing your Mah Jongg Highlighters.

To keep your Highlighters in great condition, follow these simple storage steps:

1. Leave the Highlighters flat on your protective card Sleeve.

2. Tri-fold your card closed, making sure the Highlighters are away from the creases.

3. Keep them flat to prevent creasing, which can damage the Highlighters and reduce their stickiness.

By storing your Highlighters flat, you’ll ensure they remain in good condition and continue to perform well for your next Mah Jongg game.

Yes. Our protective card Sleeves were designed with liquid protection in mind. They feature a 1-inch flap with a velcro closure, ensuring a snug and secure fit around your card. Made with water-resistant materials, our Sleeves provide reliable protection against accidental spills and splashes.

Our protective card Sleeves were designed to fit various Mah Jongg cards.

– Our Small Sleeve fits the standard National Mah Jongg League (NMJL) card, measuring 4″ x 5 1/8″.

– Our Large Sleeve fits both the Large NMJL card and the Large Siamese Mah Jongg® card, each requiring a custom fit.

Our Sleeves are made to last, remaining crystal clear without becoming cloudy or yellow. You can reuse them year after year. They will provide long-lasting protection for your Mah Jongg cards.