Clamps for holding objects while setting, engraving, etc. The set comes with inside ring sizers from 4 to 10 in two widths. The cost of the set is $99.00 plus $10 shipping within the United States. Clamps are made to order and ship the next day if there is not a backlog of orders. The clamp colors can vary from white, gray, red etc. specific color orders are not available. Follow the instructions so the clamps do not crack. For every purchase made, a second one will be donated to a student at a school in San Miguel De Allende Mexico. Please include your name and address in the PayPal .