Best Darn Knitting Needle Tubes & Crochet Hook Tubes Telescopic length extension 8-1/4" to 14-1/4"; inside dimension 1.2"x1.2" ratchet mechanism locks at extended positions; smooth & easy for arthritic hands speedy, efficient packing of needles and hooks, fits great into knitting bag use again and again, clear, see through, square shape excellent for stacking and storing. Purchase 2 pks/receive free set of Best Darn Yarn Tenders. If you are also ordering Best Darn Yarn Tenders - Get a FREE TUBE when you place an order for two packages of the "Best Darn Yarn Tenders" - see the Amazon listing of that name