The butter packaging consists of two uniform and relatively rigid trays, which are held together with a gluedband. The band serves as a hinge for the rotation. The two outside shells are also characterized by different colors.
Two tabs are mounted on the band to open the butter dish. Once you remove the protective foil, unfold them. The protective film is a seal that protects the butter during transport and storage in the supermarket, and are removed before the first use.