-The cast iron wheels are quiet and safe due to the lifetime lubricated, sealed ball bearings.
-they are adjustable for various beam size by simply changing the number of spacers.
Precise trolley wheels
-A contour trolley wheel design provides max beam contact on flat or tapered beams.
-Conforms to CE safety standard.
1.Other colors available
2.I-Beam width could change dimension
3.The length of hand chain is according to customer’s requirements
4.If you need more information, pls contact: email@example.com