..these are a classic crankbait/wobbler, tuned in to fit perfect both for spinning and trolling.
The JW 8" cranks are 21cm and weighs 125gr, suspending(slightly sinking) and dives down to arround 4-5m of depth during trolling and a couple of meeter less during spinning.
These ones have a really nice and calm rolling action in low speed(for coldwater fishing) and then in higher speed/retrieve it starts hunting irratic out to the sides!