For regular loads fill to line 4. For large loads or extra softness fill to the top. How to Use: Locate the fabric softener dispenser in your washing machine. Shake closed Snuggle bottle. Open bottle and measure to desired line in cap. Add into machine dispenser. Snuggle is safe for all fabric softener dispensers. Do not pour directly on fabrics. Note: In case of spotting, wet fabric and rub with a liquid detergent and then rinse or rewash. If product freezes or thickens, dissolve one capful in hot water before adding to final rinse.