All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Ideal use: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Sheave Ø 40 mm Max. Rope Ø 10 mm Max. Cable Ø - mm Pin Ø - mm M.W.L. 400 kg B. L. 1000 kg Weight 54 g