Perfume Studio Set of Amber Roll Ons Bottles With Metal Ball Roller Top- 10 ml - 5 Units in Amber Glass. GUARANTEED AGAINST LEAKS. These Perfume Studio essential oil Roll ons have been factory and field tested for leaks. Additional Details ------------------------------ Warranty: 90-day guaranteed against leaks/defects. These perfume studio® essential oil roll ons have been factory and field tested for leaks. If you encounter any leak problems or defects with these metal roller balls within 90 days of purchase, you may contact us for a free replacement/refund on your purchase.