material Light weight and durability This is High quality plastic and metal material Easy installation, Excellent fitment and Superior Material Type:Knock Detonation Sensor Condition: Fitment Type: Direct Replacement Part Number:10456018 10456288 1997699 Fitment: for 1992-1993 for Brougham 1990-1992 for Escalade 1999-2000 for Astro 1986-1995 for Blazer 1987-1994 for C10 -1986 for C1500 1988-1999 for C1500 1992-1996 for C20 -1986 for C2500 1988-2000 for C2500 1992-1996 for C3500 1988-2000 for 1987-1989 for Caprice -1993 for 1987-1989 for -1987 for Express 1500 1996-2002 for Express 2500 1996-2002 for Express 3500 1996-2002 for for K10 -1986 for K1500 1988-1999 for K1500 1992-1996 for K20 for K2500 1988-1995 for GS430 2001-2004 for LS430 2001-2003 for SC430 2002-2008 For 2001 For 2001 For 2002-2003 (for reference only) Specification:1PCS Material: Plastic+Metal Color: As Shown Package Contents: 1 x Knock Detonation 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.