The Trimax Ultra-Max Wheel Lock is designed to fit almost all 10"-18" wheels, making it ideal security for travel trailers and most RV wheels. This wheel lock is designed to cover the lug nuts to prevent tire removal.• Maximum opening of 14"• Clamps snug to wheel• Prongs clamp almost together through rim• Heavy-gauge steel disc covers lug nuts• Coated in weather-proof epoxy paint• Adjusting arm to tighten the disc close to lug nuts on deeper wheels• Includes 3 keyed-alike keys Heavy-gauge steel disc covers lug nuts to prevent tire removal Clamps snug to wheel with adjusting arm to tighten the disc close to lug nuts Includes 3 keyed-alike keys | Trimax TWL100 Ultra-Max Wheel Lock