A package that comprises: - a base having a side wall; - a cover cooperating with the base; - a refill composed by more than one cavity; said package having a locking, wherein: - the refill comprises at least one first securing means in the form of a side projection facing outwardly and a second securing means in the form of a side projection facing outwardly; - the first securing means being opposed to the second securing means; - the side wall having at least one first opening cooperating with the first securing means and a second opening cooperating with the second securing means; - the refill being fitted into the base by association between the first securing means and the first opening and then association between the second securing means and the second opening; characterised in that: - the second securing means has a curved end; - the refill comprises a first tray provided with a first auxiliary securing means and a second tray provided with a second auxiliary securing means, the auxiliary securing means being associable to each other laterally, so as to be associated with each other forming the refill to be secured to the base. - a base having a side wall; - a cover cooperating with the base; - a refill composed by more than one cavity; said package having a locking, wherein: - the refill comprises at least one first securing means in the form of a side projection facing outwardly and a second securing means in the form of a side projection facing outwardly; - the first securing means being opposed to the second securing means; - the side wall having at least one first opening cooperating with the first securing means and a second opening cooperating with the second securing means; - the refill being fitted into the base by association between the first securing means and the first opening and then association between the second securing means and the second opening; characterised in that: - the second securing means has a curved end; - the refill comprises a first tray provided with a first auxiliary securing means and a second tray provided with a second auxiliary securing means, the auxiliary securing means being associable to each other laterally, so as to be associated with each other forming the refill to be secured to the base. - the refill comprises at least one first securing means in the form of a side projection facing outwardly and a second securing means in the form of a side projection facing outwardly; - the first securing means being opposed to the second securing means; - the side wall having at least one first opening cooperating with the first securing means and a second opening cooperating with the second securing means; - the refill being fitted into the base by association between the first securing means and the first opening and then association between the second securing means and the second opening; characterised in that: - the second securing means has a curved end; - the refill comprises a first tray provided with a first auxiliary securing means and a second tray provided with a second auxiliary securing means, the auxiliary securing means being associable to each other laterally, so as to be associated with each other forming the refill to be secured to the base.