This billet aluminum extended bump stop spacer kit allows users to safely install 37″ tall tires on the 2018-UP Jeep Wrangler JL.Additional Attributes:GTIN:00840103401362Material:AluminumBump Stops Included:NoAAP_UDA_12:EAAAP_UDA_22:1AAP_UDA_4:55California Proposition 65:WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.Colors:GrayExtended Information:Emissions :Emissions Compliance ExemptLife Cycle Status:Available To OrderPackaging:Quantity of Each:1.0Package UOM:EADimension:10.0000 x 10.0000 x 8.0000 inchesWeight:8.0000 PG