Seldén 40mm Single Swivel BB Block Lubricants Special patented buffering process makes

Special patented buffering process makes this product safer than other acid based bottom cleaners

Can also be used for a variety of interior and exterior sealing applications

These blocks have a ratchet mechanism that can easily be switched on or off even under load and the swivel head can be locked in a fixed position

Wire fairleads maintain a low profile while holding the line close to the cleat

Add one capful to every 25 Litres of water when filling tank

Seldén 40mm Single Swivel BB Block Lubricants Special patented buffering process makesAcetal bearing cage to prevent ball to ball friction and to reduce weight, stainless steel ball bearings, races, and glass fibre reinforced sheave for best bearing strength even under high dynamic loads. Specifications Weight 55g Max Line size 10mm Shackle 4 Breakload 500kg Safe Working Load 250kg