Add all 4 items to your basket; Discount deducted at checkoutTerms and Conditions:1. Where items of varying value from a deal are included in your basket, the discount will be awarded against the cheapest item(s);2. Your basket will be automatically adjusted to reflect the discount at the checkout stage;3. If you remove any of the promotion items from your basket the promotion will be invalid, and the discount will be removed from your order;4. All offers subject to availability;5. Offer is available in Pets at Home stores, maximum 12 packs (3 redemptions) for online orders;6. There are a limited number of promotional products which are part of the offer, certain promotional products may sell out and become unavailable more quickly than other promotional products depending on customer demand. Pets at Home reserves the right to vary the terms of the offer or replace the offer at any time;7. Offer applies to orders placed after 9am on 20/03/2013 and offer ends Midnight 16/04/2013.