Blank Bolo Tie Kit Contents: Round Slide, Smooth Tips, Black Cord. Color: Black Cord. Sterling Silver Plated Slide and tips. Made in USA. Slides are 16mm, tips are 30mm. Cord is 36". Supplies to make one bolo string tie. Push cord under channels on the back of the slide and tighten slightly with pliers if needed to hold cord in place. Attach your decorative piece to the slide with appropriate adhesive (not included). Glue tips onto the ends of the cord.