Enhance your exercise equipment with these high-density foam rollers designed specifically for fitness machines. These versatile rubber foam pads are perfect replacements for various exercise equipment components, including bench leg curl, leg extension, and pec dec (butterfly) machines. Each roller measures 12 inches in length with a 4-inch outer diameter and 40mm inner diameter. The package includes two foam rollers, providing a complete set for your equipment maintenance needs. These muscle rollers offer reliable cushioning and support for your workout equipment, ensuring proper functionality and comfort during exercises.