This is a furniture button tufter. Thread twine into the round hole of the clasp, hook the square hole onto the needle, push the needle in, then withdraw it. Directions are included.

CS Osborne #613

A great tool for saving time and labor.
Thread the button and load the end of the needle with a clasp; as the needle reaches the bottom of your work, the clasp is ejected. This way there is no need to remove the outside back of the piece you are working with.

CS Osborne #417

Clasps for the #613 tufting needle. Sold by the gross.

CS Osborne #614

Clasps for the #417 tufting needle.
Box of 500.

CS Osborne #418

Made of hardened steel with a rubber handle, used for pulling loops up and through.
CS Osborne #408