The VMC Swimming Depth Adapter is an innovative accessory that makes it easy to adjust the swimming depth of your hard lures. By adding this device to your lure's eyelet and attaching the appropriate weight (VMC Refill Screw available in 5, 10, 15, 20 or 25 g), you can quickly and effectively modify your lure's swimming depth. Assembly is simple: simply clip the adapter to the eyelet and attach your leader or clip directly. This system makes changing weight and adjusting swim depth easier than ever, offering maximum flexibility to adapt to varied fishing conditions.