SIZING: Each bow is made to fit a 1" collar, if collar is bigger just let us know and we would be more than happy to accommodate.Small-2.5x3.5Medium-3.5x4.5Large-4.5x5.5CARE: Spot or gently hand wash with cold water. Reshape and lay flat to dry. This bowtie is very durable and should keep its shapeIMPORTANT NOTES: As each bowtie is handmade and made to order, there might be variations in the pattern registration from the bowtie pictured. Additionally, while this bowtie is very durable it is not meant for extreme rough wear and always supervise your dog when wearing to ensure safety