New and . Made of materials for maximum durability and reliability. Easy to install, no complicated tools required, easy to use. Professional workmanship, exquisite , novel and style Support CAS3 3and cas4 4and direct matching without soldering, safe and stable If you are not professional for technology, please don't buy this product Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Color: As shown Material: plastic Different batches have different printed labels. There are slight differences between the actual product and the picture, which not affect normal use. Package Contents: 1 x For Test Platform Programming Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.