Abstract: An amphibious protection apparatus includes wall members that define an occupancy space for accommodating one or more users, and an access region for providing access to the occupancy space. Each wall member is foldably and detachably connected to each other. Each wall member includes a thick outer layer defining an outer enclosed space and an inner inflatable member having an inner enclosed space. The outer enclosed space accommodates the inner inflatable member. A fluid injected into the inner enclosed space inflates the inner inflatable member, thereby inflating each detachably connected wall member to form a buoyant enclosure that bounces on land and floats on water. The buoyant enclosure protects the accommodated users from impacts from different directions on land and water. The amphibious protection apparatus also includes an access port having an arrangement of lenses that enables magnification and viewing of objects present in an external environment.

Abstract: A toothbrush apparatus includes a handle with a longitudinal axis and a toothbrush head constructed and arranged to hold multiple bristles. The bristles are formed in a non-circular configuration. The non-circular configuration is on a distal end, or a portion including the distal end, or the entire bristle. A wall defining an elongated bristle body of each bristle tapers from a base end towards a chisel end of the elongated bristle body. The toothbrush head is of an arcuate shape that conforms to a dental arch. The toothbrush apparatus includes one or more bristle carriers for detachably attaching multiple bristles to the toothbrush head. The second end of each of the bristles of predetermined heights defines a first curved trim profile and a perpendicular second curved trim profile. The bristles in the first curved trim profile at a terminal end of the toothbrush head are extended to reach rear teeth.

Abstract: A toothbrush having a handle with a longitudinal axis, a toothbrush head, constructed and arranged to hold bristles and a plurality of bristles, whereby said bristles are formed in a non-circular configuration whereby the non circular configuration is on at least one of a distal end, a portion including the distal end or the entire bristle.