{"product_id":"deli-s521-liquid-whiteboard-markers-10-pack","title":"Deli S521 Liquid Whiteboard Markers 10-Pack","description":"\u003ch2\u003eDeli S521 Direct Liquid Ink Whiteboard Markers (10-Pack)\u003c\/h2\u003e\n\u003cp\u003eNever run dry during critical presentations or high-intensity classroom lectures with the Deli S521 Direct Liquid Ink Whiteboard Markers 10-Pack. Engineered with an advanced free-flowing liquid ink chamber and a multi-finned capillary feed regulator, the S521 holds up to three times more usable ink than conventional fiber-core markers. Paired with a precise 1.3mm fine bullet nib, this pen delivers intensely saturated, skip-free handwriting that maintains constant color brilliance until the reservoir is completely empty.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3X High-Capacity Liquid Ink System:\u003c\/strong\u003e Free-ink reservoir holds triple the ink volume of standard cotton-core markers, ensuring extended writing longevity and zero ink waste.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConsistent Capillary Flow Regulator:\u003c\/strong\u003e Multi-channel feeder prevents nib starvation or dripping, producing flawless continuous lines under rapid writing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision 1.3mm Fine Bullet Nib:\u003c\/strong\u003e Durable fine tip produces sharp, legible text inside cramped calendar grids, kanban sprint boards, and mathematical formulas.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean Ghost-Free Erasability:\u003c\/strong\u003e Micro-pigment formula releases instantly from non-porous surfaces with a dry swipe, leaving boards immaculate and shadow-free.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Odor \u0026amp; Non-Toxic Formulation:\u003c\/strong\u003e Xylene-free alcohol vehicle conforms to ASTM D-4236 standards, ensuring comfort in tight huddle spaces and study rooms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolid 10-Pack Single-Color Boxes:\u003c\/strong\u003e Convenient 10-marker packs available in vibrant Black, Blue, or Red to meet high-volume office and school supply needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Deli\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e S521 (DL-S521)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNib Type:\u003c\/strong\u003e 1.3mm Fine Bullet Tip\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInk Mechanism:\u003c\/strong\u003e Direct Free-Liquid Ink with Capillary Feed Regulator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInk Chemistry:\u003c\/strong\u003e Low-Odor Alcohol-Based Dry Erase Ink\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Color Variants:\u003c\/strong\u003e Black, Blue, Red\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e 10 Markers per Box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Substrates:\u003c\/strong\u003e Whiteboards, Glass Memo Boards, Porcelain Panels, Melamine Surfaces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Standards:\u003c\/strong\u003e ASTM D-4236 Compliant, Non-Toxic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUsage \u0026amp; Storage Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eWrite across dry whiteboard or glass surfaces using light to medium hand pressure.\u003c\/li\u003e\n  \u003cli\u003eAllow lines to set for a few seconds before wiping clean with a dry whiteboard eraser or microfiber towel.\u003c\/li\u003e\n  \u003cli\u003eSnap caps tightly shut after every use and store markers horizontally to maintain optimal ink balance in the capillary feed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHow does direct liquid ink compare to traditional whiteboard markers?\u003c\/strong\u003e\u003cbr\u003eTraditional markers use an internal polyester sponge that retains up to 30% of its ink when thrown away. The S521 uses a free-liquid ink tank that empties completely while maintaining full, dark color saturation down to the last drop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs the 1.3mm tip suitable for small desktop memo boards?\u003c\/strong\u003e\u003cbr\u003eYes. The 1.3mm fine bullet nib is specifically scaled for compact whiteboards, refrigerator calendars, and detailed process flowcharts where broad chisel markers crowd the space.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes the ink leave stains if left on the whiteboard over the weekend?\u003c\/strong\u003e\u003cbr\u003eNo. The specialized release agent prevents pigments from bonding permanently to the board substrate, allowing easy dry erasure even after extended periods.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCustomer Support \u0026amp; Pre-Shipment Inquiries:\u003c\/strong\u003e\u003cbr\u003eFor questions regarding your order, shipping updates, or delivery adjustments before dispatch, contact our dedicated support team at \u003cem\u003eszjyf@outlook.com\u003c\/em\u003e. Orders can be canceled for a 100% full refund at any time prior to shipping confirmation.\u003c\/p\u003e","brand":"Deli","offers":[{"title":"Black","offer_id":68453450645538,"sku":"SL-S521BK","price":16.2,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":68453450678306,"sku":"SL-S521BL","price":16.2,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":68453450711074,"sku":"SL-S521R","price":16.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0902\/3045\/6354\/files\/DELI-S521-WHITEBOARD-MARKER.jpg?v=1791864595","url":"https:\/\/www.xypen.com\/products\/deli-s521-liquid-whiteboard-markers-10-pack","provider":"XYPen","version":"1.0","type":"link"}