These refill bottles have enough fragrance oil to refill your mini diffusers twice, each refill lasting for 2-4 months (depending on weather/heat/cold). Our car diffusers are simple to use and provide a lasting fragrance. You can find our diffusers here. Car diffuser refills comes with:- Glass dropper bottle- 0.5oz / 15ml of fragrance of choice Scent descriptions: Blue Lava - Notes of sugared citrus and tropical mountain greens. Farmhouse Kitchen - a warm and cozy blend of green apples, peach, and fresh pine, highlighted with a heart of cinnamon and notes of sweet spice. Brazilian Glow - a lovely blend of pistachio, almond and sandalwood. A popular favorite! Orange Grove - a warm weather favorite! A true orange scent infused with essential oils, including sweet orange, mandarin, pine, and clove leaf. Porchside Lemonade - Juicy watermelon and zesty lemonade blend into a bright, refreshing spring clean. Vanilla Nut Coffee - Toasted chestnut and warm vanilla swirled in fresh brewed coffee Boujee - Overflowing with fruits and florals with amber notes. A soothing, long lasting blend. Cashmere - Creamy French vanilla layered with exotic woods, sweet musk, and subtle floral notes for a warm, cozy, elevated clean. Eucalyptus + Mint - Notes of bright eucalyptus and sweet mint. Energizing and refreshing! Black Ice Type - Masculine fragrance with fresh bergamot, wild lavender and subtle florals are followed by sandalwood and soothing musk. Inspired by the Little Tree air freshener scent. Spiced Apple - a lovely scent that brings apple harvest and apple cider to life into your home. Always a seasonal favorite! Christmas Tree - bring the scents of the Christmas Tree farm into your home! Cinnamon + Vanilla - Cinnamon + Vanilla - just the right blend of spicy cinnamon and sweet vanilla brings warmth into your space and sets the perfect Autumn mood. +more!