Jobe Chaser 4 Person Ski TubeJobe Chaser 4 Person Ski Tube The Jobe Chaser 4P is a 4 person sit on ski tube with a raised seating position and individual seating sections. Four riders each get their own seating section across the deck, with the raised ride height giving a higher view of the water than a flat deck tube. A 28 gauge PVC bladder sits inside an 840 denier nylon cover with double stitched seams. The one way Boston valve handles inflation and the quick connector hooks