FREE SHIPPING with every subscription order. Subscription is only available for a Refill Razor Cartridges 4 Pack. Once you have subscribed, 1 unit of Refill Razor Cartridges 4 Pack will automatically be delivered on your chosen schedule. A few days prior to your subscription renewal, you will receive an email reminder. You may modify or cancel your subscription anytime. Subscription orders cannot be combined with other discounts or promotions.