YakAttack TracPak Combo Kit. Includes two stackable storage boxes, quick release base, and four white labels. Includes track mount and surface mount hardware. Combo Kit Weight: 2.44 Lb. Individual Storage Box Weight: 1.06 Lb. Internal dims: 8.375 In. x 5.375 In. x 2.375 In. External dims: 9.5 In.x 6.5 In.x 3.625 In. Covered by the Built for Life Guarantee