PREMIUM QUALITY FABRIC - The soft velvet fabric feels great to the touch, elastic and plush. No hair removal, no pilling, no skin irritation. Skin-friendly and comfortable, great texture Cushions should be placed on top of all seat covers! Direct contact with the human body! Contains a pressure sensitive chip for safety and reliability! Only turns on when a person sits on it, safe and secure! Before using the cushion, check whether the iron piece on both sides of the lighter plug is curved, if it is not curved or obviously flattened, you need to pry the iron piece slightly curved before you can continue to insert the lighter mouth to use! ( if the iron piece is not adjusted after the flat pressure is inserted into the lighter mouth, it will make the lighter plug contact is not good, resulting in the phenomenon of melting of the plug burn! When a person must sit on top of the cushion, first set the switch to the high-grade HI gear, wait 2-3 minutes and feel the effect, you can then set the switch to the low LO gear! If it stays in high gear, it will automatically cool down! If it is always in high gear, it will automatically cool down and will turn on again when it is lower than about 30 degrees! Do not use the cushion for more than 30 minutes before the car is started! If you the car without using the cushion, please turn off the switch and pull out the lighter plug! The controller switch style is random, don't accept the specified Colour:black Material:cotton Package Contents: 1x Winter Seat Cover 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.