1. Place your thumb on the logo, then use two fingers to lift the prongs from underneath to create space.
  2. With your other hand, slide your empty glass under the prongs until the stem hits the U shape.
  3. Ensure your glass is sitting flat on all 4 surfaces.

Leave it on your glass to drink. When you are finished slide it off, rinse, dry and store out of direct sunlight ready to use again.

How they work

They increase the surface area of your glass without weighing your glass down. They are effective on almost any surface, as long as it is relatively flat. Glass on the Boat has a non-slip silicone underside that grips to smooth surfaces.

Will they fit my glass?

Glass on the Grass™ is designed to fit most steamed wine glasses. They also fit small plastic picnic glasses and festival wine tasting glasses. We do not recommend use with extra tall glasses or glasses with extra thick stems. More information about this can be found here

What are they made from?

They are made from durable, BPA free, food-grade K-Resin. Our current production uses approx 30% of recycled material. They are designed from long term use but are 100% recyclable. To clean them rinse in warm soapy water.

Where are they made?

Designed and developed in Australia. We are proud of the fact that they are made in The Northern Beaches of Sydney, Australia. We also acknowledge the valuable input of our USA and China partners who have been instrumental in our prototype and tooling of our product read more.


While the product decreases the likelihood of a spill, it won’t prevent spills in all cases. Please be aware that we won’t accept liability for any loss, damage or injury that results if you fail to follow our instructions and recommendations on the use of the product.  Please refer to our Product Disclaimer here.