Enhanced Propane Tank Stability: This set of 2 ring bases raises propane tanks by 0.6 inches, providing improved stability and helping to protect attached gas monitors. Ideal for keeping propane tanks securely supported on various surfaces. Versatile Compatibility: Designed to fit 20, 30, and 40 lb propane cylinders ranging from 5 to 10 gallons. Compatible with most wireless propane tank monitors, offering a universal solution for propane tank users. Protection Guaranteed: Safely place your propane tank on patios, grills, or vehicle trunks. These bases help prevent scratches, marks, and rust rings, protecting both the tank and the surface it rests on. Durable Construction: Made from high-quality flexible TPE with a solid compression-molded bottom, these ring bases are built for long-term durability and resistance to wear in various environmental conditions. Effortless Installation and Secure Fit: Simply slide the protective rings onto the base of your propane tanks for a snug, secure fit. Designed to stay in place, they help prevent slippage and displacement during transport. Color: Black Material: TPE Package Contents: 2 x Ring Base for Propane Tank Note: The actual product may have slight color variations due to lighting and display differences. Measurement error allowance is +/- 1-3 cm.