Allen 20mm Double Tii-on Block ulani An update to our best

An update to our best seller

Ideal for cleaning all marine surfaces

With the Allen dynamic bearing technology at the heart of this block

Special air chamber makes it float

-3mm neoprene with a microfleece lining

Allen 20mm Double Tii-on Block ulani An update to our best20mm Double Tii On block The 20mm Dynamic ball bearing block is a new range, suitable for numerous applications. Patented dynamic ball bearing technology utilising high quality 316 stainless steel ball bearings running on a stainless steel axle provides an unsurpassed dynamic load carrying ability. A rope friendly, smooth stainless steel ring in the top of the block holds it together providing maximum strength and durability under load whilst