Ronstan Series 25 Ball Bearing Orbit Block boom With internal wet and dry

With internal wet and dry compartments

With an easy on/off attachment to the board with an ultra lightweight snap shackle

Easily fitted and securely retained Dyneema® Link head

It is ideal for learning to sail or for the lighter weight sailor graduating from a Optimist

The material pushes moisture away from the body and the fleece feels great against the skin

Ronstan Series 25 Ball Bearing Orbit Block boom With internal wet and dryThe Series 25 Ball Bearing Orbit Blocks, delivering superior strength, reduced weight, and exceptional performance for high demand dinghy and small boat applications. Designed with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength to weight ratio. Featuring Ronstans renowned high compression strength acetal bearing system, the Series 25 BB Orbit Blocks are a lightweight