Felo 07157 53251 Smart Box with 12 Interchangeable Blades and Handle Handle made of cellulose acetate: high impact resistant, free of cadmium, temperature and age-proof 1/4-Inch blades made from high-quality bit-steel, exceeding industry standards by up to 100 percent with black tip for precision and fit Multi-tool with interchangeable blades replaces 48 single tools Handle with anti-roll shape is T-handle and Screwdriver handle in one Lifetime warranty