Features: brand new and high quality laptop bottom cover door forThinkPad T440P Part Number APOSQ000900 SM10A39180 SM10A39133 High quality ABS material,durable for long term use. Removed from a good-working ThinkPad- T440P laptop, has been tested to fit and function properly. We are dedicating to provide better quality of goods and customer experience Specifications: Type: Laptop Bottom Cover Door MPN-Number: APOSQ000900 SM10A39180 SM10A39133 Compatible Model: ThinkPads T440P Color: Black Size: approx 31.6x22.5cm/12.44x8.86in Package Includes: 1 x Bottom for Case Cover note: BEFORE BUYING: Please make sure P/N or FRU No. is exactly same as the parts in your laptop. DON'for T order the parts based only on Laptop model No. There might be different parts for same part of a same laptop model and might not compatible each other. Please check the pictures of our listing carefully, what we presented will be exactly what you get. Due to differences in lighting and screen settings, the color of the product may be slightly different from the picture. Due to different manual measurements, please allow slight size differences.