Secures up to 80 lbs of weight per box. Stays sealed during rough handling and rough rides in a moving truck. Durable hot melt adhesive stays on, stays strong for tough jobs. Tough grip on all box types, including hard-to-stick boxes made with 100% recycled fibers. Grade: Medium-Duty; Core Size: 3"; Dispenser Included: No; Adhesive Material: Hot Melt Synthetic Rubber.