Our M82-02 Webbing/Lashing block features a machined aluminum body with Torlon (tm) rollers and Delrin (tm) ball bearings.   Block may be "opened" to install a webbing or lashing loop.   Length = 4-1/2" (114mm), Width = 3-7/32" (82mm), Thickness = 1-1/8" (28mm), Weight = 9.1 oz (258gm)   Does not include webbing or lashing.