3 air chambers including inner auxiliary chamber inside main hull. Quick fill fast deflate Boston valve on main hull chamber. All round grab line. Welded on oar locks. NO oars or pump with this model. Inflatable I-beam floor for comfort and rigidity. 63 x 37 x 11.5 (160cm x 94cm x 29cm) designed for one person use max load 80kgs. This design comes with 2 oars.