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KWADRON Tattoo Cartridges & Needles | Review & Setup

Shipped from our European warehouse - no extra taxes or duties

Kwadron Tattoo Cartridges - Round Liner, Box of 20

Name: Kwadron Tattoo Cartridges - Round Liner, Box of 20
Brand: Kwadron
SKU: KWCS-LIN
Price: 30 EUR
Availability: InStock
Rating: 92 (15 reviews)

KWCS-LIN

15 Reviews

From: €30.00 €25.00

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The Kwadron All Round Liner Cartridges help tattoo artists achieve consistent, clean linework with every session. Each cartridge houses precision-grouped long taper needles built for fine lines, contours, and detailed outlines. Sold in boxes of 20 and manufactured to tight tolerances, they deliver repeatable results you can count on.

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Description

The needles are made from surgical stainless steel and sit inside medical-grade plastic tips, keeping friction low so they stay sharp throughout your session. A built-in safety membrane prevents ink backflow, delivering consistent ink flow without flooding or drying out mid-tattoo.

A needle stabilising system holds each needle firmly in place, eliminating wobble during fast passes and tight detail work. Available in #8 (0.25 mm) and #12 (0.35 mm) diameters with a 7 mm long taper, they suit fine script, lettering, and bold traditional outlines.

Please select the needle size, diameter and taper length you require.

Key Features

Configuration: Round Liner (RL)
Needle Material: Surgical stainless steel
Taper: Long Taper (LT)
7 mm
Needle Diameter: 0.25-0.35 mm (available in #8/0.25 mm and #12/0.35 mm)
Housing Material: Medical-grade plastic
Safety Membrane: Full membrane prevents ink backflow
Sterilisation: EO (Ethylene Oxide) gas sterilised
Quantity: 20 cartridges per box

More Information

Coupon Code	15% OFF WITH FLASH15
Key Features	Key Features Configuration: Round Liner (RL) Needle Material: Surgical stainless steel Taper: Long Taper (LT) 7 mm Needle Diameter: 0.25-0.35 mm (available in #8/0.25 mm and #12/0.35 mm) Housing Material: Medical-grade plastic Safety Membrane: Full membrane prevents ink backflow Sterilisation: EO (Ethylene Oxide) gas sterilised Quantity: 20 cartridges per box
Product Badge Gradient	Blue
Kwadron PDF	Download the PDF for a detailed look at the cartridge system, configurations, and other key features. Please note, this PDF is in English only. Download Now

Delivery

EU Distribution

EU orders ship from our EU warehouse and are packed by a dedicated local team. That means no additional taxes or duties apply.

All orders completed before 15:00 on a working day will be dispatched the same day via the delivery service requested.

Delivery costs vary according to the size and weight of your order, starting from just €6.95. We offer free delivery on orders over €50.00 plus VAT!

Warranty

For more information, please see our warranty details.

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Reviews

Review by Mink by Mara

Even if we are talking about liners,shaders or magnums ,I’ve tried them all and these needles are just working for everyone! Just love how flexible yet accurate they are also incredibly light and aesthetic.

Compared with other brands, I’ve never had a faulty lot or needle! I know I can count on them !

Love them ????

Review by Eden

I love using the kwadron liners for fine line tattoos as they’re so smooth and move through the skin like butter. No snagging or issues at all, definitely makes it easier to start with knowing that your work will be perfect every time

Review by Kyle

Been using Kwadron liners for years and they’ve never let me down. Super consistent, nice and sharp, and they just make clean lines easy. They’re the only liners I really trust these days.

Review by Beth Chloe Tattoos

Been exclusively using kwadron cartridges for a few years now, I get on with round liners especially well and have never had any 'dud' cartridges that are below the the expected quality that I used to come across often in other brands. Fully recommend kwadron cartridges.

Review by Kylo

Still hands down some of the best carts out there. Rarely get one in the box that’s not perfect but it’s the nature of these items unfortunately and it’s usually 7rl if any for some reason. Defo recommend, magnums are elite.

Review by nevermind.tattoos

Expensive doesn’t always mean best. Used these for a few years but saw the quality drop & become inconsistent over a year ago after a whole box of 18RL were wobbly & shaking like mad. Unusable & unforgivable on skin. Would never use kwadron again, complete waste of £36

Review by Babe

Really nice ink flow, I also tend to throw less of these away (less duds) than other brands.

Review by Terri

I do love these round liners, they work well with both my mast fold pro 2 and my fk irons one!

Review by James

I used kwadron exclusively for a year, they are great , hold the needle well, however the new cartridges I don’t like as much as the old, plus had problems with quality control on some boxes!