the coil spring 30 fig3 5 display the fastener 50 support arm 60 and clip arm 20 respectively so that the features of each part are more clearly seen in fig3 the fastener 50 has channel 55 with threads 57 for securing to the clip arm 20 fig4 shows one embodiment of the positions of the body opening 62 and hole 65 as seen the hole 65 is located at the end of a neck 67 extending from an annular portion 63 created by body opening 62 the annular portion 63 is the portion of the support arm 60 which is held rigidly between the upper end 70 a and writing instrument body 70 the neck 67 is sized to provide a rigid support to the clip arm 20 connected through hole 65 and prevent the neck 67 or other parts of the support arm 60 from deforming when the clip arm 20 is pivotally moved in use it should be noted that the support arm 60 could be formed integral with the writing instrument body 70 eliminating the need for upper end 70 a in such case a neck 67 having a hole 65 would extend from one side of the writing instrument body 70 the clip arm 20 in fig5 has flange 40 with upper surface 45 for supporting the lower end of the coil spring 30 a ball 80 or other element is located at the end of the clip arm 20 forming the opening of the clip 10 the ball 80 is helpful in passing the clip 10 over a shirt pocket or the edge of a paper pad when the clip 10 is used that the support arm 60 is a separate rigid piece distinct from the clip arm 20 and coil spring 30 is.