The 97% tungsten composition allows for a smaller size for the selected weight. The propeller operates on the retrieve; check its clearance after threading the lure to ensure the nose doesn’t slow it down.
The two black versions, weighing 5.25 and 7 g, are rigged with a size 1/0 hook and sold in pairs. Use a fairly steady retrieve to maintain the spin, then slow down as you pass a break in the current without losing contact.