An attachment assembly comprises a removable member and an attachment member. The removable member comprises a first coupling member and the attachment member comprises a second coupling member. At least one of the first coupling member and the second coupling member comprises a ferromagnetic material such that the first coupling member magnetically couples to the second coupling member.

An attachment assembly comprises a removable member and an attachment member. The removable member comprises a first coupling member and the attachment member comprises a second coupling member. At least one of the first coupling member and the second coupling member comprises a ferromagnetic material such that the first coupling member magnetically couples to the second coupling member.

Various type cases providing for storage and transport of combinations of architectural blueprint drawings, plans, and related files and materials are disclosed. A combination laptop and file case provides for containing a laptop and hanging files within and including side pouches for easy external access. A triangle plan drawing case provides for storage and transport of a single architectural blueprint drawings set. A travel blueprint architectural drawings case provides for storage and transport of small number of architectural blueprint drawings. A multi-blueprint architectural drawings case provides for storage and transport of a medium or mid-range number of architectural blueprint drawings. A multi-blueprint architectural drawings open case provides for storage and transport of a larger number of architectural blueprint drawings in an open case having no lid.

Various type cases providing for storage and transport of combinations of architectural blueprint drawings, plans, and related files and materials are disclosed. A combination laptop and file case provides for containing a laptop and hanging files within and including side pouches for easy external access. A triangle plan drawing case provides for storage and transport of a single architectural blueprint drawings set. A travel blueprint architectural drawings case provides for storage and transport of small number of architectural blueprint drawings. A multi-blueprint architectural drawings case provides for storage and transport of a medium or mid-range number of architectural blueprint drawings. A multi-blueprint architectural drawings open case provides for storage and transport of a larger number of architectural blueprint drawings in an open case having no lid.

A magnetic belt assembly is provided. The assembly includes a first belt portion having a first coupling member and a second belt portion having a second coupling member. Each of the first coupling member and the second coupling member includes a plurality of magnets that is structurally flexible such that each magnet of the plurality of magnets is angularly positionable relative to each other magnet of the plurality of magnets to form a non-planar surface.

A protective book carrying case for carrying a book and protecting the book from external forces includes a back case member with a bottom wall and a perimeter wall. The perimeter wall is coupled to and extends away from the bottom wall. The perimeter wall and the bottom wall define a book-receiving cavity with a rectangular shape that has a size for accommodating a book. The perimeter wall and the bottom wall comprise a back member rigid material such that the back case member is configured to protect the book from impacts experienced by the back case member when the back case member contains the book. A front case member is pivotally coupled to the back case member and is movable between an open position and a closed position with respect to the book-receiving cavity.

A protective book carrying case for carrying a book and protecting the book from external forces includes a back case member with a bottom wall and a perimeter wall. The perimeter wall is coupled to and extends away from the bottom wall. The perimeter wall and the bottom wall define a book-receiving cavity with a rectangular shape that has a size for accommodating a book. The perimeter wall and the bottom wall comprise a back member rigid material such that the back case member is configured to protect the book from impacts experienced by the back case member when the back case member contains the book. A front case member is pivotally coupled to the back case member and is movable between an open position and a closed position with respect to the book-receiving cavity.

A multipurpose piece, which can be attached to a mobile phone and which is equipped with glasses, a writing instrument and a folding support, the piece includes an accessory for personal use, provided with cavities, to which a mobile phone can be attached. The multipurpose piece has the form of a rectangular, prismatic hollow piece including a cavity for glasses on one of its shorter sides, the cavity housing glasses having a frame, temples, hinges and nose pads, another cavity for a writing instrument housing an instrument such as a Stylus, a regular pencil, pen, marker or similar, gripping recesses, a folding support that folds about a shaft, attachment elements for attaching to the mobile phone, and a lightening of material in a particular location so as not hinder the operation of the lens of the attached phone.

A multipurpose piece, which can be attached to a mobile phone and which is equipped with glasses, a writing instrument and a folding support, the piece includes an accessory for personal use, provided with cavities, to which a mobile phone can be attached. The multipurpose piece has the form of a rectangular, prismatic hollow piece including a cavity for glasses on one of its shorter sides, the cavity housing glasses having a frame, temples, hinges and nose pads, another cavity for a writing instrument housing an instrument such as a Stylus, a regular pencil, pen, marker or similar, gripping recesses, a folding support that folds about a shaft, attachment elements for attaching to the mobile phone, and a lightening of material in a particular location so as not hinder the operation of the lens of the attached phone.