The Slice® 10536 Seam Ripper Blades (Rounded Tip) offer a safer alternative to traditional seam rippers. Not only is the cutting edge finger friendly®, but the rounded tip protects the user and the fabric from accidental punctures. These blades are suitable for both Slice seam ripper handles, but also for both craft knives, the 10568 scalpel, and the Precision Knife. As with all Slice safety ceramics, the rounded-tip seam ripper blades (which last up to 11 times longer than metal) are chemically inert and never rust, so there is no danger of damaging precious material with stains. The ceramic blades last up to 11 times longer than metal.