Description: Structure: This Engraving Bed Tool is made of metal hardware and a pp ring ball clamp, providing a wear resistant, stable, and structure for long-lasting use 【Easy to Use】: With its innovative design and craftsmanship, this jewelry making tool offers a smooth surface for comfortable operation 【Jewelry Tool】: It's good for securing rings during gem setting, polishing, beading, designing, repairing or inlaying with its ring positioning clamp 【Comes with Round Accessories】: The ring inlay kit covers almost all sizes of rings on the market to meet your different inlay needs 【Wide Application】: An ideal tool for jewelry making and fine processing; practical for industrial and home applications as well as personal use Specification: Material: Steel Size Chart: 15cmx10.1cm2.3cm/5.91inchx3.98inchx0.91inch Package Includes: 1 Set Ring Processing Tool   Note: Please allow slightly errors 1-2cm differences due to manual measurement.