12 also includes a back wall 14 which extends outwardly from shank portion 13 at substantially right angles with respect to the upper surface of the shank portion 13 it can also be seen that back wall 14 includes means which define a yarn guide 15 that is in the form of a rearwardly sloped slot specifically the upper wall 16 and lower wall 17 define the limits of the yarn guide 15 this particular type of guide is normally used when it is desired to operate a loom when using yarn from a plurality of sources as opposed to a single source these type of yarn guides are also well known in the prior art a further part of main body portion 12 is an upper wall 20 that begins at the uppermost limit of back wall 14 and extends forwardly in a substantially horizontal plane from the back wall 14 this upper wall 20 is also located outwardly from the shank portion 13 and is substantially parallel with the upper surface of the shank portion upper wall 20 terminates in a front wall 25 that extends downwardly from the forwardmost limit of upper wall 20 from wall 25 extends downwardly from upper wall 20 a distance less that the height of back wall 14 as best seen in fig2 and 4 of the drawings the lower terminus of front wall 25 defines a yarn.