Fiddle with Becket, Ball Bearing Sheaves 706-55Fiddle block with anodized aluminum cheeks, ball bearing sheaves and becket. Works with 706 45 for a 4: 1 purchase. Delrin(tm) ball bearing sheaves feature a single top sheave and two in line sheaves to spread the load reducing friction and chafe. Swivel head design may be locked in place to avoid twist. Removable becket allows for pre spliced lines to be used. Length 9 7 16"(240mm) Width 3 31 32"(101mm), Thickness 1 3 32" (28mm), Weight 1 lb 9oz