Cocoknits Knitter's Block contains everything needed to block hand-knits.  The interlocking tiles fit together to create the best shape to suit projects, whether they're square, round or triangular. Each tile has a fabric covering that gently grips knitting while blocking. With a thick waterproof backing, no moisture will seep through onto the surface below, plus pins are held firmly in place. The tiles are heat-resistant making them perfect for steam blocking.  The Knitter's Block kit includes: 18 interlocking, fibre-topped 12x12in foam tiles (compatible with older Knitter's Block tiles) 40 stainless-steel T-pins 48in square cotton cloth woven with 1in square gingham to help measure the finished piece A sturdy 14x14in jute bag to contain the kit