Tungsten slotted beads are perfect for flies and jigs. Tungsten gets flies down twice as fast as cheaper brass beads as they are typically double the weight of a similar sized brass bead. With an enlarged slot recess which allows you to easily get the hooks around the gape of the hook.Specifications and Features: Product Family Tungsten Beads Width mm 3.8mm Width In 0.15 inch Product Delivery Package Bag Vendor-Color Copper Qty-Carton 12 Category Semperfli Tungsten Slotted Beads 3.8mm (5/32inch) 3.8mm Marketing Family Tungsten Beads