100% cotton fabric. Pattern placement may vary. CollarFlowers are the perfect accessory to dress up any collar. Flowers measure approximately 3" across and have a velcro strap so they can attach to any collar 3/8" up to 1", any style (side release, buckle, martingale, combo, hound). You can cut the velcro strap if needed for smaller width collars; it will not fray.