Features: Wheel Alignment Tester delivers professional precisions with its calibration system, accurately measuring caster, and steering inclination to optimizing tire service life and driving performances. Featuring hub mounted installation option and magnetic adapters, this gauge tool secure attaches to wheel/brake disc for stable measurements across multiple vehicle surfaces. Ideal for car enthusiasts, professional mechanic, and DIYers seek workshop level accuracy for suspension tuning, wheel alignment adjustments, and routine vehicle maintenance. Perfect for garage workshops or home garages, this calibration tool performs critical alignment diagnostics on steel/alloy wheel using its caster scale and gauge. Engineered with magnetic plates and professional accuracy, this wheel alignment kit ensures minimal measurement drift while maintaining compatibility with turntables and wheel clamps. Specifications: Material: Metal Size: about. 21x9cm/8.27x3.54in Package Includes: 1pc Caster Gauge note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.