The SpongeKnit Pro Replacement Sponge Bar is made from high-quality, medium-density foam, ensuring durability and long-lasting performance. Designed to fit models KH821, KH831, KH851, KH868, KH860, and KH871, it offers a seamless upgrade for your knitting machine. Replacing the sponge bar is simple: open the layers with a screwdriver, remove the white plastic head, clean the original sponge, insert the new sponge bar, and reassemble. Its lightweight design makes handling easy and reduces fatigue during use. The user-friendly, intuitive design allows for effortless integration, enabling smooth knitting sessions. Each piece is carefully manufactured to meet high standards of quality and precision, helping you create beautiful, intricate patterns with confidence. Whether replacing worn-out parts or upgrading your equipment, this sponge bar is an essential accessory for maintaining optimal knitting performance.