An angle-adjustable, gravity flow ink refill and pen, each comprising of at least one bendable portion along its length. The bendable portion acts as a concertina-type hinge to allow both the pen and refill to bend to an angle and maintain the bend imparted to it. In a preferred embodiment, the refill is flexible in structure (full or partial) and the pen having a crimped corrugated bendable portion. In an alternate embodiment, intertwined helical wires form the bendable portion for the pen, the refill or both to maintain the angle bent. Alternatively a flexible gooseneck tube is used for the bendable portion of the pen. The pen writes normally on flat surfaces and on inclined surfaces, the rear end of the pen is bent forward such that the rear is pointed upwards towards the sky. This allows ink to flow towards the tip via gravity and facilitate consistent delivery of ink at multiple writing angles.

Disclosed herein are a water and wax-based ink, a marking instrument comprising the water and wax-based ink, and a kit comprising the marking instrument and a marking element comprising a non-porous surface, wherein a mark applied on the non-porous surface using the marking instrument is substantially removable without application of any solvent. The water and wax-based ink composition comprises an opacifying waxy material, a dispersant, water, and optionally a dye.

A writing instrument comprising an inner reservoir for storing a first medium, wherein the inner reservoir comprises at least one opening at a first distal area of the inner reservoir; a sleeve at least partially surrounding the inner reservoir; an outer reservoir for storing a second medium; and an actuator. The inner reservoir and the sleeve are movable with respect to each other by actuation of the actuator, and the inner reservoir and the sleeve are arranged at least partially within the outer reservoir.

A protective element for a writing tip of a writing instrument including a cap extending longitudinally along a central axis and configured to be fitted onto a body of the instrument, and a clip extending substantially parallel to the central axis from a first end fixed to the cap to a free end. The clip and the cap are in one piece.

The invention encompasses a sterile skin marker whose felt ink reservoir can be advanced by twisting the end of the marker revealing additional felt tip. The dried portion of the previously used felt tip can be cut off to reveal a fresh, ink saturated felt tip.

The present invention relates to an interactive board game system that enhances strategic depth and interactivity. The system includes a game board depicting various environments, overlaid with a clear, transparent sheet. Magnetic game pieces, placed on the game board under the transparent sheet, are marked with notations indicating orientation or area restrictions. A gaming wand, featuring a dry erase marker on one end and a magnet on the other, is used to draw action lines on the transparent sheet and to manipulate the magnetic game pieces. This setup allows players to dynamically move or rotate game pieces, denoting actions such as movement, attacks, and other interactions, while preserving the integrity of the game layout. The invention supports various game scenarios, accommodating players of different skill levels, and integrates elements of chance to enhance gameplay. This system provides a versatile and immersive gaming experience by combining traditional and innovative game mechanics.