b'Selection guideblocksFriction blocksWFRX : RINGSENN E WAluminiumwith hard anodization65 4 3 2 1B E N E F I T S PartAB CDW.L WeightN Black mm mm mm mm Kg Kg Material 6 sizes availableFRX61 20705 5.5 7 9 18 400 0.002 Aluminium Very strong FRX10 Very light 2 21008 8 10 12 25 800 0.005 Aluminium FRX15Various applications: mast-foot block,inhauler, barber-hauler and more. 3 21510 10 15 15 35 1600 0.012 Aluminium Suitable for all types of rope FRX204 22014 14 20 21 47 3200 0.031 Aluminium(Dyneema, etc.) FRX25 Materials: hard anodized aluminium 5 22517 17 25 25 60 5000 0.057 Aluminium for greater lifespan FRX40W E 6 24027 27 40 40 90 8000 0.213 AluminiumNN E WC0 D 0 B0 AApplicationsMast-footblock,barber-hauler,inhauler, loop, thimble, lazy jack, running backstay, tackle, and more.34 I 35'