Unior 1614/4BI Crown race Puller 1"-1.1/2"Product features material: premium flex plus carbon steel surface finish: blacken to standard DIN 50938 safe to use on aluminum, steel, titanium, or carbon steerer tubes Compatible with steerer tubes with a maximum length of 380 mm Collet for every steerer tube size from 1? 1. 1 2? The entire system is packed in a custom cutout SOS foam tray, keeping things organized and clean Lifetime warranty Made in Europe.