You asked, Frank Green delivered! Designed with durable silicone material, their Car Cup Holder Expander is specifically made for your frank green 34oz/1L Ceramic Reusable Bottle. 

• Designed for frank green 34oz/1L Ceramic Reusable Bottles
• Made from durable silicone material
• Product Dimensions: Height: 114mm Base outer diameter: 75.8mm

Every car is different, make sure to check the product dimensions before purchasing to determine whether this product is compatible with your car.