There's no better tie-down than the virtually indestructible Poly-Cord™. No metal hooks to scratch or gouge, no cloth covering to rot or fray. Made of Vibrathane®, it always returns to its original length, stretches up to 2x original size. It leaves no scuff marks, and it's not affected by sunlight, oil, most chemicals, saltwater or salt air. Lifetime replacement guarantee. Per four. Sizes: 12", 18", 24". Colors: Black, Blue, Red.