Designed by a Calvin Klein Knitwear designer and Parsons School of Design graduate, the Ultra sponge bar is the ultimate knitting machine sponge bar.
* Made from the perfect density of sponge – Medium Density. (The Science: High Density is too hard causing needles to get stuck, Low Density is not resilient and compresses too easily, Medium Density is soft enough to work with the needles, but strong enough to last a long time)
* Covered in two types of textiles for smoothest use. Strong black mesh on one side for adhesion and form. Durable, off-white smooth binding fabric on the other side to keep the needles from snagging and for smooth carriage use.
* Made to last. Will last 3-5 years with normal use (unlike most sponge bars which only last 1 year).