Makes switching between street and race wheels easyQuick & simple bolt in fitment, great for the DIY'erStrong 6mm steel construction with high tensile hardware included5 adjustment positions up to 80mmDurable jet black powder coat finishApplications:- Mazda RX3/808 Sedan, CoupeAlso available for purchase is a replacement Leaf Spring Bush set. When ordering please specify if you have a 34mm front spring bush or 40mm.