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.

• Maximum line (mm)12 mm
• Maximum line (in)1/2 in
• Minimum line (mm)3 mm
• Minimum line (in)1/8 in
• Use with57 mm/Big Bullet/Dinghy/2.25″/small ratchets
• HAR 205