DNA Coilover Damper Shock Spring Adjustment Tool Spanner Wrench X2 (Black) Made of high quality stainless steel alloy for strength and durability Adjustment tool for coilover dampers' ride height adjustments Overall dimensions: 9.75" Length X 2.70" Height Perch specs: 3" (Inner diameter) Applicable on most aftermarket coilover dampers, being sold on most online selling channels