Made of materials. Easy installation and use name:Tire pressure sensor for : for Aveo(2006-01 - 2010-11). for Aveo (KL1T, /V)(2010-12 - 2022-07). for Captiva(2006-06 - 2019-06). for Cobalt(2013-01 - 2019-12). for (J300) (KL1J)(2008-10 - 2017-05). for (KL1J)(2017-06 - 2018-12). for (KLAL)(2006-03 - 2013-08). for Express 2500(2003-01 - 2022-03). for Lacetti(2003-06 - 2014-12). for (KL1G)(2012-01 - 2014-06) for (2001-01 - 2005-03). for (2005-04 - 2015-10). for (2010-09 - 2018-06). for 1500(2013-07 - 2019-03). for Spark(2005-02 - 2009-06) for Spark (M300)(2009-07 - 2019-09). for (2006-06 - 2014-06). for (2014-07 - 2020-06). for (2013-06 - 2020-06). for Trailblazer(2013-05 - 2015-04). for (2012-07 - 2016-12) Material: Plastic + metal Color: Blue + black Number:25809220 Operating Frequency: 433MHz Application: for : for ( 2011-04 -2013-09) for Escalade (GMT926)(2006-09 - 2014-05) for Escalade (K2UL)(2014-06 - 2020-08) for SRX (GMT166)(2009-11 - 2016-10) for SRX (GMT265)(2003-06 - 2009-10) for Gentra(2004-04 - 2016-12 for (2014-01 - 2018-06) for Nexia(2014-01 - 2016-12) for (2007-05 - 2014-06) for (2006-09 - 2014-06) for (2014-07 - 2020-08) for H2(2002-04 - 2012-12) for H3(2005-03 - 2014-05) for (L-A)(2006-08 - 2010-10) for (L-A)(2010-11 - 2015-12) for Mokka (J-A)(2012-07 - 2015-08) for (2007-05 - 2010-11) for Antara(2010-12 - 2015-12) for Mokka (J-A)(2012-09 - 2015-08) Package Contents: 4 x Tire pressure sensor 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.