CODE 10661BBZ INQUIRE available in ash, oak, black walnut, and lignum vitae All Blocks shown on photo are available in single, double or triple, with or without beckets. They come with bronze straps, fittings and bronze roller, bushed sheaves and pins for rope. CODE ROPE DIA. PRICE 10641TEK 3/8” single inquire 10642TEK 3/8” single with BECKET inquire 10643TEK 3/8” double inquire 10644TEK 3/8” double with BECKET inquire 10645TEK 1/2” single inquire 10646TEK 1/2” single with BECKET inquire 10647TEK 1/2” double inquire 10648TEK 1/2” double with BECKET inquire 10649TEK 5/8” single inquire 10650TEK 5/8” single with BECKET inquire 10651TEK 5/8” double inquire 10652TEK 5/8” double with BECKET inquire Teak Block with STS Straps and Bronze Roller Bearings and Sheaves A Series of Wooden Blocks 10641TEK-10684PBZ We have many different kinds of blocks, if you don’t see the item  you are looking  for, just give us a call or check on our web site.