Valid Fridays only from 28th February to 3rd April 2020. Offer valid for signature range cocktails and mocktails. Cannot be used in conjunction with any other offer. Alcohol is for over 18s only. Offer valid with online booking made at least 24 hours in advance quoting ‘2for1Cocktails’. The Restaurant Manager’s decision is final. Offer subject to availability. COSMO Restaurants reserve the right to withdraw or alter this offer at any time without prior notice. Offer valid at COSMO Derby only.