.detail-extend{ max-width: 984px; width: 100%; margin:0 auto; } .detail-extend .product_c{ margin:30px 0; } .detail-extend .product-title{ position: relative; border-bottom: 1px solid #ddd; padding-bottom: 5px; text-align: center; font-family: Open Sans,Arial,Helvetica,sans-serif,Heiti; font-size: 20px; font-weight: bold; } .detail-extend .product-title:after{ content: ""; position: absolute; width: 60px; height: 3px; background: #000; bottom: -2px; left: 50%; margin-left: -30px; } .detail-extend img{ display: block; text-align: center; margin: 25px auto; } Description: *100% new and high quality *Made of high quality material, durable and practical to use *2pcs Bike Bicycle Rear Derailleur Pulley Jockey Wheel For-SRAM Force Rival Apex red 11s 10 22 Speed Specification: *Material: Plastic+Stainless Steel Bearing *Color: Black (As Pictures Show) *Size: 11T *Weight: About 12g Package Includes: 2 x Jockey Wheel Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.