Ronstan Series 50 SP Single Utility Block (with Nylatron Sheave) - Universal Head Product Number:RF50100HL specifically formulated for use in

specifically formulated for use in the interiors of all types of construction

Integrated bleed ball prevents air locks

Seals out moisture and helps prevent corrosion

You will also prolong your teak from turning grey

Fastener Hole Centres: 48

Ronstan Series 50 SP Single Utility Block (with Nylatron Sheave) - Universal Head Product Number:RF50100HL specifically formulated for use inRonstan Series 50 Special Purpose Single Utility Block (with Nylatron Sheave), Universal Head RF50100HL Exceptionally high working loads Lightweight Cheek cut outs for easy bearing maintenance Suitable for both rope or wire Captive Lock universal head Slotted pin shackle eliminates fouled lines Applications Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10 m (33 ft) Materials Nylatron sheave Grade 316 stainless steel