7x73mm Unscented Cotton Refill Sticks Odorless Absorbent Cotton Wicks Replacement for Car Vent Diffuser Essential Cotton Rods

✅ Pure Odor-Free Cotton MaterialMade of high-purity natural cotton without chemical additives, zero strange plastic or chemical odor. Safe to match essential oils, no weird mixed smell to ruin your customized fragrance.✅ Standard Universal Size 7x73mmUniform dimension 7mm diameter ×73mm length, perfectly fit most mini pen-style car vent diffuser clips, portable pocket aroma diffuser tubes on the market, ideal replacement refills.✅ Strong & Even Oil AbsorptionDense uniform fiber structure quickly soaks up essential oil, delivers slow, steady fragrance evaporation. Avoid fast volatilization, extend your car freshener lasting time.✅ Soft Sturdy Structure, Not Easy To BreakCompressed solid cotton rod won’t shed fluff or split after long-time soaking. No cotton residue left inside your diffuser tube, keep your diffuser clean and unclogged.✅ Multi-Scene Replacement UsePerfect refills for car vent aromatherapy diffusers, pocket essential oil inhaler tubes, mini portable perfume sticks. Great for home, car, office, travel daily fragrance use, cost-effective bulk replacement supply.  Features:Uniform porosity distribution; strong water absorption, large water storage, stable volatilityNot water soluble, no sticking, keep the water vapor evaporation rate consistentIt can match all types of perfumes and is non-toxic.