Ice jig body shapes

Ice jig body shape sets two things: how the lure answers the spring bobber's movement and how visible it is from the side. Shape only adds a little to the hang angle — that's set by the point of attachment. It doesn't set the weight either: that comes from the metal, and that's a separate card on its own.

Ball and drop shapes

The simplest bodies, symmetrical ones: only the point of attachment sets their angle, and on the eye they hang the most level of the whole class. A drop shape has more surface area than a ball of the same weight, and the difference between them shows up not in the fall but in how the body answers the spring bobber.

Elongated bodies

A long, narrow body has a long axis, and the wobble ends up wider at the tip. Jigs like that are more visible from the side. In current, length doesn't decide anything — weight does the work there, and that's covered separately.

Curved bodies

A curve shifts the centre of gravity off to the side of the attachment point, and the lure hangs tilted; the best-known of these shapes is the uralka, a body bent into an arc. It's the biggest change shape alone can make — though the point of attachment changes the angle even more.

Segmented bodies

A few fused balls or pinched sections on the body — that's the murashka, a body built from a row of little balls, and shapes like it. They don't change the weight, but they do change the surface: it catches light differently and puts up more resistance in the water, and a body like that answers the spring bobber differently than a smooth one.

Chertik

A special case: an elongated body where a treble sits in place of a single hook — most often moulded in, less often hung below on a ring. It's the only spot in the class where the hook is ever removable at all: on every other jig nothing comes off at all. The lure sits almost vertical, and the hook works separately from it — the spring bobber's movement reaches it with a delay.

What gets picked for jigging without bait

Curved and segmented bodies mostly live in bare ice jigging — why exactly is covered in the card on the two schools. For baited jigging, a simple body that leaves the point exposed gets picked more often.

Shape and metal work together

The same shape in different metal means a different size and a different fall speed: they hang and pass on the spring bobber's movement the same way. That's why a winter tackle box holds jigs of the same shape in different sizes — and they behave differently.

What shape doesn't do

It doesn't make the lure more visible at a distance: there's little light under the ice, and from far off a fish reads movement, not outline. The difference in outline only works up close. And shape doesn't stand in for tempo — the same jig gives you different lures depending on how the hand works it, not the other way round.