A refill for writing implements has an ink reservoir tube (1) made of resin material and formed to be a straight cylinder and a writing tip (2) attached to one end of the ink reservoir tube (1), and a value of an expression of D.sup.4(D2t).sup.4 is selected to be 45 or greater, where D denotes an outer diameter of the ink reservoir tube (1) and t denotes a thickness of the ink reservoir tube (1). It is possible to secure the necessary storage amount of ink in the ink reservoir tube (1) without increasing the outer diameter thereof, and is also possible to provide a refill for a writing implement and a writing implement which allow one to keep writing comfortably without feeling of discomfort in writing.

A pen has an ink reservoir configured to store an ink containing decorative particles and a pen tip configured to apply the ink to an ink coating target. The pen tip includes a proximal end to which the ink is supplied from the ink reservoir, a distal end opposite to the proximal end and configured to contact the ink coating target, and a groove opening on the outer circumferential surface of the pen tip and extending from the proximal end to the distal end.

A pen has an ink reservoir configured to store an ink containing decorative particles and a pen tip configured to apply the ink to an ink coating target. The pen tip includes a proximal end to which the ink is supplied from the ink reservoir, a distal end opposite to the proximal end and configured to contact the ink coating target, and a groove opening on the outer circumferential surface of the pen tip and extending from the proximal end to the distal end.

A writing instrument system including an elongated tip having a firm, felt or plastic nib and a piercing tip. The elongated tip includes a curvature that resembles a shape of a dolphin and the nib is positioned at a first-end of the elongated tip for distributing ink to a surface in a controlled manner. The elongated tip is in fluid communication with the nib. The elongated tip also includes the piercing tip which is able to penetrate an ink cartridge or tube of a pen and be removably affixed to a pen. The piercing tip is in fluid communication with the elongated tip and allows ink to flow from a penetrated ink cartridge or tube through the elongated tip to the nib where it can be applied to a surface.

A double-head marker pen includes a first penholder, a second penholder and a connecting tube; one end of the first penholder is formed with a first pen head, and one end of the second penholder is formed with a second pen head; and an end of the first penholder away from the first pen head is detachably connected with an end of the second penholder away from the second pen head by the connecting tube.

A pen including an ink reservoir to store an ink; a pen tip which has a proximal end and a distal end opposite to the proximal end and applies an ink to a coating target; an ink guide to guide the ink in the reservoir toward the pen tip; and a holder part which has a through hole through which the pen tip is inserted and holds at least the proximal end of the pen tip while exposing the distal end of the pen tip with the pen tip inserted through the through hole. The holder part includes: an ink holding part capable of holding the ink from the ink guide and formed at least partially around a circumference of the through hole; and a first opening opening on an inner circumferential surface that defines the through hole and communicating with the ink holding part.

A pen including an ink reservoir to store an ink; a pen tip which has a proximal end and a distal end opposite to the proximal end and applies an ink to a coating target; an ink guide to guide the ink in the reservoir toward the pen tip; and a holder part which has a through hole through which the pen tip is inserted and holds at least the proximal end of the pen tip while exposing the distal end of the pen tip with the pen tip inserted through the through hole. The holder part includes: an ink holding part capable of holding the ink from the ink guide and formed at least partially around a circumference of the through hole; and a first opening opening on an inner circumferential surface that defines the through hole and communicating with the ink holding part.

Provided is a writing implement capable of drawing lines using capillary action, wherein the width of the line can be freely adjusted while the line is being drawn and it is possible to draw lines of almost the same width at the beginning of the use of the writing implement as at the end of use. A felt-tip pen 1 is provided with an ink reservoir 11, a collector 17, and a core 29 for drawing by capillary action the ink that has been dispensed by the collector 17, dispensing the drawn ink from the tip, and adhering same to a paper surface. Even in repetitive writing, the rate of variability in the width of the lines drawn at the end of use with respect to the width of lines drawn at the beginning of use is 10% or less.

An object of the present invention is to obtain a thermoplastic resin composition that is suitable for obtaining a molded article that does not produce increased hydrophilic properties, and that has a hard feel and a texture closer to that of earthenware.

The thermoplastic resin composition of the present invention is characterized in that it contains 10 to 50 parts by mass of a thermoplastic resin (A), 50 to 90 parts by mass of a metal oxide (B) [provided that the total amount of (A)+(B) is 100 parts by mass], and an unmodified polyolefin-based wax (C) in a range of 0.1 to 20 parts by mass per 100 parts by mass of the total amount of (A)+(B).

An easy-to-hold off-axis pen has a pen head, a barrel, and at least one forefinger support. The pen head is irregularly shaped and hollow. The barrel is connected with the pen head and is hollow to accommodate a cartridge and to be held. A detachable clip fastener is strip-shaped whose two ends are respectively disposed on the pen head and an off-axis part of the barrel. One end of the detachable clip fastener can be pulled by fingers. The at least one forefinger support is disposed on a sidewall of the off-axis part to support and locate the forefinger during writing. The present invention can further include middle finger abutments disposed on the off-axis part and thumb anti-slip parts disposed on the barrel to make the easy-to-hold off-axis pen easy to grasp and anti-slip, and make users comfortable to grasp.