Materials and Size: crafted from plastic and synthetic felt, each scent dispenser about 5 inches/13 cm, each replacement felts about 2.4 inches/6 cm; and portable, easily carried in pockets or clipped to gear without adding bulk. Advanced Airtight Design: the air tight scent dispenser features a threaded hanger, O-ring, and gasket, preventing any leakage; Manage scent release with adjustable wick exposure. Easy to Use: using the scent dispenser is straightforward: unscrew, soak the felt in your scent, adjust exposure using wick, and securely hang it; Preserve unapplied scents by sealing it tightly. All-weather Reliability: the rain air tight scent dispenser, equipped with a ridged, umbrella-shaped roof, the wick from adverse weather; This ensures reliable scent performance across forests, fields, or wetland. Color:Green Material:ABS Package Contents: 6 * Air Tight Scent Dispenser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.