Specification Brand : Firdnyohs BulletPoint1 : 2 Pack Ring Base for Propane Tank: 8 1/4 inches outer diameter provides a maximum of 0.6 inch elevation. Serves as a spacer and protective rubber footing. That provides elevation and protection for the propane tank monitors. BulletPoint2 : Compatible with 20-40 Lb Propane Tank: The propane tank base holder is compatible with most wireless propane tank monitors. It fits 20, 30, or 40 Lb DOT-certified propane cylinders (5, 7.5, or 10 gallons). BulletPoint3 : Provides Protection: You can confidently place your propane tank on any surface without worrying about scratches or unsightly marks.preventing it from causing any damage or rust rings on your patio, grill, or car. BulletPoint4 : High Quality: Our ring base for propane tank is made of strong yet flexible rubber with a solid bottom, which is compression-resistant and suitable for long-term using. BulletPoint5 : Easy to Use and Install: The propane tank protective ring slips on and off the base of most 20-40 lb tanks.You no longer have to worry about the ring slipping off or getting misplaced while moving your tank from one location to another. Its secure fit construction ensure that it remains in place, providing continuous protection wherever you go. Color : Black ItemName : Ring Base for Propane Cylinder Tank 2 Pack 8 1/4" Propane Tank Protective Spacer Base, Fits 20-40 lb (5-10 Gallons) Propane Cylinders Compatible with Wireless Propane Gauges ItemPackageDimensions_Height : 23.0124 centimeters ItemPackageDimensions_Length : 5.5118 centimeters ItemPackageDimensions_Width : 22.9108 centimeters ItemShape : Round ItemTypeKeyword : grill-connectors Manufacturer : Firdnyohs ModelName : Ring Base for Propane Cylinder Tank ModelNumber : 2pack NumberOfBoxes : 1 NumberOfItems : 2 PartNumber : Ring Base for Propane Cylinder Tank01 PowerSourceType : NO ProductDescription : 1 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 21000000