Size: 100mm - 4" Excellent quality heavy duty "Nairn" brand Australian made nylon inspection ports with rubber "O" ring lid seals

96%PL 4%EA 260gsm

spin pole down

Rope diameter (mm) 16 Weight (g) 43 Suits Block Series Series 60 All Purpose Width (mm) 19

Ensure all sails

Ronstan Series 75 Ratchet Block RF72100 Geelong Grammar Size: 100mm - 4" ExcellentSingle Sheave Block with Lockable Swivel Shackle Head and Ratchet FEATURES Unrivalled 20: 1 holding power. Dual sided On Off switch. Ability to operate On Off switch under load. Low friction ball bearing system. Lightweight. Cheek cut outs for easy bearing maintenance. Specifications Product Specifications Type of Block Single, Ratchet Sheave diameter (mm) 75mm B. L. (kg) 2000 M. W. L. (kg) 420 Max. Rope diameter (mm) 12 Weight (g) 290 Pin (mm) 7