The SE JT451BH Wooden Bead Holder with Lock Nut will not mar or scratch your items, which are easily locked in place with a wing nut. This wooden bead holder holds 6 sizes to accommodate different sizes and shapes of beads securely with a spring loaded wooden bead holder. This is handy for holding beads while you work on them. It provides a firm hold for drilling and cleaning. There are 6 slot sizes, including 7/16", 5/16", 1/16", 3/8", 3/16", and 1/8". The dimensions of the wooden bead holder are 7" x 1-1/2" (including wing nut) x 3/4". This product is made of wood and metal. SE is committed to providing the customer with the best source for value possible on the market. You will enjoy the quality, function and usefulness of our SE JT451BH Wooden Bead Holder with Lock Nut. IPR Rights Notice: Important: Avoid getting counterfeit items. Genuine SE products come with the SE logo on the packaging. SE is a registered trademark protected by US Trademark Law.