The Pear Shaped Kayak/Single Trolling Rig is 36" long.  You can choose 30 or 45 lb Surflon Wire,  One end has a 90lb Crane Swivel, and your choice of weight, 2oz, 3oz, 4oz.  The Kit comes with the ability to quickly change your weights with the special Clevis. 

Attach to a single rod as you troll on a Kayak, or boat and set the depth by lowering your line, the weight will hold that depth.  The other end has a float, with either a 90lbCrane Swivel with Snap, or a Stainless Steel 120 lb Crane Swivel with Snap.  The float will keep live bait or your jig up regardless your speed.  Inexpensive, and many options to suit your needs.  The float and Weight click against the beads which draw Striper, White Bass, Hybrid, and other species to hit this one Hard.  Can be fished in Fresh and & Salt Water.