High quality: car rear bumper spike made of high-quality aluminium alloy, strong and durable, good elasticity, can effectively extend the life of the bumper Decoration: with the polishing technology, the surface is smooth and bright, which can decorate the car and improve the appearance of the car Function: In tricky parking lots (such as parallel roadside parking or crowded parking lots), you can have enough distance from the car behind you with this bumper protection spike to protect the bumper from collisions EASY INSTALLATION Just install directly, tear off the plastic cover and tighten it. Tighten the screws to avoid falling off Applicable models: compatible with Smart Fortwo 2009-2014 ED, 451 Electric Crossblade.