100% Brand new and high quality, this product are tested before shipping. ^^ 3Pcs Bottom Cover Rubber Non-Slip Bumper Feet Pad Replacement for DELL 16 Area-51 AA16250 (Long 29.6 * 0.5 * 0.3 Short8 * 1.5 * 0.3 cm) ^^ Easy for you replace your faulty, cracked or broken one, seller remind that you should replace this in the off state. ^^ Special skill and techniques required for proper installation. Please check both the model and picture before purchase. ^^ GinTai offer you best service, if you have any questions, please feel free to contact GinTai customer service