Billiard & Pool table Long spider. Spider bridge head attaches to any pool cue, it's ready for bridging your cue for long shots or shooting over another ball make your shooting easy simply slip it over the tip of any pool cue and stores in your pocket or pool cue case... The Spider is effectively a tall rest. Where a rest is required and the cue ball is just the other side of another ball, a cross rest will not do the job because the cue needs to go over the intervening ball. Such shots are only possible with a spider.