HiyaHiya Interchangeable Needle Tips 4-inch (10cm) Sharp Steel; Size US 2 (2.75mm) HISSTINTIP4-2 1 x HiyaHiya Interchangeable Needle Tips 4-inch (10cm) Sharp Steel, Size US 2 (2.75mm) HiyaHiya SHARP Steel Interchangeable needle tips are made with high quality stainless steel HiyaHiya SHARP Steel interchangeable needle tips have nearly invisible screw on joins and a smooth but not too slippery finish Lifetime Product Warranty: If purchased from an authorized dealer, HiyaHiya guarantees all products against all manufacturing defects; warranty excludes products damaged due to accident, misuse, abuse or negligence