Feature●Dimensions: 75mm x 50mm x 55mm.●Holding Strength: 1000N●Thread: M8●Works best with with Fisso Strato, Strate u-Line, & Classic Adjustable Gage Holder Arms!●High quality & reliability. Long lasting, & maintainence free service life.Description The Fisso SM Switch Magnet works best with with Fisso Strato, Strate u-Line, & Classic Adjustable Gage Holder Arms! We carry all the Fisso arms, if you cant find what you need just ask!