5 when blank 10 is assembled into its corresponding carrier the locking tab 42 engages slot 43 to hold the carrier in a configuration suitable for use blank 10 further includes a plurality of pairs of bottle engaging flaps 44 the roof 13 the flaps 44 allow a bottle to be inserted therethrough and into the body of the carrier and grip a bottle so inserted around its neck or body the flaps 44 also prevent adjacently placed bottles from knocking against each other when the carrier is in use each flap 44 a 44 b of a pair comprises a portion hingedly attached to the surrounding roof 13 along a hinge line 46 fig3 an upper portion 47 of each flap is cut such that it is not joined to the roof 13 a trans verse fold line is formed between the upper 47 and lower 48 sections of each flap in the figures a solid line represents a cut between the flap and adjacent roof 13 and a hashed line represents a fold line suitably formed by perforations or by compressing the board along the line additionally first and second base portions 22 32 of blank 10 also comprise tabs 45 in the form of feet to prevent a loaded carrier from slipping for instance in the boot of a car whilst in transit in the embodiment shown the feet 45 are formed along fold lines 24 and 33 though it will be recognised that they could be formed anywhere within the base portions 22 32 fig7 a e illustrate a number of alternative feet designs blank 10 may also include separator flaps not shown formed in the first and second base portions 22 32 in a bottle carrier designed.