This economy engraving block is ideal for the beginning or hobbyist engraver or stone setter. The set includes a variety of attachments to be used for holding your piece while you work. The jaws of this engraving block are integrated into the unit and do not lift off of the block. Top rotates 360 degrees. Features: 5 Inch diameter engraving ball Sturdy steel construction Rotating top 2.5 Inch expanding jaws with 1.5 inch depth Rubber base 1/8 Inch pins Includes: 4 bent pens 4 rubber covered pins (small) 4 rubber covered pins (large) 4 concave pins 4 tapered pins 4 triangular pins 4 locket holders 4 watch holders 2 button holders 1 key