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Tools to Make it Easier

Great tools make knitting and crochet even more enjoyable. At String Theory Yarn Co, our knitting tools and crochet accessories are chosen with the same care as our yarn—because the right tools make every stitch smoother, faster, and more fun.

Smart Tools for Knitters and Crocheters

Our collection includes the essentials every maker reaches for again and again: interchangeable knitting needles, circular needles, crochet hooks, stitch markers, row counters, and tapestry needles. Whether you’re casting on a sweater or finishing a pair of socks, the right knitting notions can make all the difference.

Beautiful, Well-Made Notions

We love tools that are not only practical but also a pleasure to use. That’s why our shelves feature thoughtfully designed knitting accessories, clever gadgets, and beautifully crafted notions made by small makers and trusted brands. Many are created by artisan toolmakers and women-owned businesses who share our love of craft.

Small Tools, Big Difference

From project bags that keep your knitting and crochet organized to clever yarn tools that save time and frustration, these little helpers turn good knitting days into great ones.

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Gifts

Project Bag Bowl
Sale price$55.00
Forest Island Carryall Tote
Small Gift Bag
Sale price$8.00
Medium Gift Bag
Sale price$9.00
ChiaoGoo Interchangeable Needle Set in Tools - needles | String Theory Yarn Co

Interchangeable Needle Sets

all your needles in one place

Find the set that's right for you
Tall Gift Bag
Sale price$9.00
Haversack - Incana
Sale price$175.00
Overnighter Bag
Sale price$300.00
Large Zippered Tote Bag
Flight of Fancy Reusable Tote
Zipper Pouch
Sale priceFrom $30.00
bowl with beaded heart-shaped tape measures in assorted colors
A set of wooden embroidery stitch markers with engraved text, displayed on a white patterned card labeled 'STITCH MARKERS' with the brand 'A Needle Runs Through It' at the bottom, set against a white wood plank background.
Set of black and white cat-shaped charms on a wooden surface
Sparkle Ring Markers
Vintage Corduroy Tote
Sale price$20.00
Green bag with floral embroidery on a white surface
Woven Drawstring Pouch
Sale price$32.00
Save 53%Knit 2 Socks in 1
Sale price$8.00 Regular price$16.95
You Will Be Able to Crochet by the End of This Book
Knitting Cowlettes
Complete Crochet Course: The Ultimate Reference Guide
Sold outCraSy Snake DPNs - Addi 1 / US1.5 / 2.5mm
Atenti Project Tote
Sale price$200.00
Birth Flower Embroidery
Crocheting the National Parks
52 Weeks of Scrap Yarn
Sale price$26.99
Autumn Totes
Sale priceFrom $28.00
(5.0)
Magnetic Notions Holders
Sale priceFrom $15.00
Erasable & Resusable Stitch Markers
Yarn Cutter - String Theory Flowers
Sold outMath for Knitters Book
A person in a white t-shirt and dark jeans holds a cream canvas zipper pouch featuring a cartoon graphic of a bearded man with a camera and the text 'YOU CAN'T PROUGH WOLFIES'.
Blockprint Tote
Sale price$65.00
Bottle of wool wash with a pump dispenser on grass
MDK Field Guide No. 5 - Sequences
Wooden icord maker with yarn on a white background
Ergonomic Pillow
Sale price$120.00
(5.0)
Tortoise Shell Buttons
Sale price$12.00
Sold outYellow Daisy Buttons
Sale price$12.00
Strawberry Needle Gauge Bag Charm
Numbered Stitch Marker Set
Octopus Keychain
Sold outStitch Stopper Holder
Fabric Clips
Sold outScissors with Sheath
Sale price$12.00
Project 73
Re:Designed English Leather Care
Lykke Umber Interchangeable Tunisian Crochet Set
Lykke 5" Starter Interchangeable Needle Set
Crocheted Cats