Lines can be freely varied in thickness, and lines with characteristics such as stops, flicks, and sweeping strokes can be written easily, even with a felt-tip pen, marker pen, or the like. Moreover, a pen-tip does not readily become damaged or worn. A writing implement includes a shaft, an ink supply core such as that of a felt-tip pen or a marker pen, and a core surrounding member that covers the ink supply core. The writing implement is formed capable of contacting a tip of the ink supply core and a tip of the core surrounding member against a writing surface at the same time by using a joint capable of changing a relative positional relationship between the ink supply core and the core surrounding member.

Lines can be freely varied in thickness, and lines with characteristics such as stops, flicks, and sweeping strokes can be written easily, even with a felt-tip pen, marker pen, or the like. Moreover, a pen-tip does not readily become damaged or worn. A writing implement includes a shaft, an ink supply core such as that of a felt-tip pen or a marker pen, and a core surrounding member that covers the ink supply core. The writing implement is formed capable of contacting a tip of the ink supply core and a tip of the core surrounding member against a writing surface at the same time by using a joint capable of changing a relative positional relationship between the ink supply core and the core surrounding member.

To provide a writing instrument capable of further improving durability of a writing nib without impairing writing performance even when writing is performed with a heavy writing load. A writing instrument A having a writing part formed of at least a writing nib 30 made of a porous body and a retainer 40 made of a hard material, in which the protrusion amount of the distal end of the writing nib 30 from the retainer 40 is 0.65 mm or more and 1.05 mm or less and/or 40% or more and 65% or less of the thickness of the writing nib 30.

To provide a writing instrument capable of further improving durability of a writing nib without impairing writing performance even when writing is performed with a heavy writing load. A writing instrument A having a writing part formed of at least a writing nib 30 made of a porous body and a retainer 40 made of a hard material, in which the protrusion amount of the distal end of the writing nib 30 from the retainer 40 is 0.65 mm or more and 1.05 mm or less and/or 40% or more and 65% or less of the thickness of the writing nib 30.

Provided is an assembly for a nail pen comprising: a) a nib made from a material that is configured to allow for movement of varnish from inside of the nail pen to the nib, and from the nib to a nail; b) a guide made from a material that is non-absorbent to the varnish, the guide extending below a surface of the nib that is configured to apply varnish to the nail; wherein a user applies a strip of the varnish to a distal portion of the nail by holding the guide against an edge of the nail and moving the nail pen along the distal portion of the nail so that the surface of the nib holding the varnish contacts the distal portion of the nail to apply varnish to the nail.

The application relates to a porous color linker comprising a tip portion configured to deposit indicia on a writing surface; a mixing portion configured to combine a plurality of inks; and a base portion having a first receiving portion configured to receive a tip of a first ink discharge device and a second receiving portion configured to receive a tip of a second ink discharge device.

A writing instrument may include an upper pen barrel rotatably connected to a lower pen barrel. A spool valve and fluid reservoirs may be housed in the upper pen barrel. A writing tip secured to the lower pen barrel may be in selective fluid communication with the fluid reservoirs. The upper pen barrel may be rotatable relative to the lower pen barrel of the writing instrument.

A writing instrument that comprises a writing instrument base and a focus tool is provided. The writing instrument base includes a marking system coupled with a barrel. The marking system is configured to provide writings on a writing medium, such as paper. The focus tool is coupled with the writing instrument base. The focus tool is configured to blend in with the writing base. The focus tool includes a device that engages a user's senses and reduces the negative impact of attention deficit disorders when used by the user. The fidget tool stimulates the user's vestibular system and proprioceptive senses through one or more of the following: movement, sound, smell, visual, and tactile action. The fidget tool may be discreet such that the tool is hidden or not viewable when not in use.

A marking instrument having a plurality of removable writing nibs serially aligned so that an operator can remove a spent or fluid-affected writing nib and, thereby, access a fresh writing tip.

A marking instrument having a plurality of removable writing nibs serially aligned so that an operator can remove a spent or fluid-affected writing nib and, thereby, access a fresh writing tip.