Soft, fabric sleeve keeps Spacer in position between first and second toes to separate and align, and prevent rubbing and friction. Help divide crooked toes and gently straighten the big toe to relieve pressure on bunions, too. Exclusive Gel releases mineral oil to soothe and hydrate skin. Interchangeable for left or right foot. Sleeve fits over 1st or 2nd toe. Washable. Reusable. Durable.