Each stopper is supplied with two sizes of wedge-piece so that it can be used for two different sizes of rope; a 2-in, stopper, for example, can also be used for a 2½-in. rope.
Umiso olunye lunganikezelwa ngesayizi ezimbini zecala leverhe ukuze kusebenziswe indidi ezimbini ezahlukeneyo zentambo, ezimbini, umiso umzekelo, lungasetyenziswa kwi 21/2 zentambo.