Ball bearing swivel bases feature dual rows of Delrin¨ ball bearings that swivel freely even under high loads. Bases include stand-up springs and a U-adaptor to accept a variety of appropriate blocks. The low profile 205 is used when installation is at deck level and when smaller blocks are used.

Delrin¨ is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.