This product is an unsharpened training tool made of high quality metal material for durability. The unsharpened design will protect you from damage and you can use it with confidence. Ingenious design, simple operation and convenient use. Great for skill training. Features - Color: Blue. -Material: Stainless steel. - Dimensions: 4.1x1.5x0.2cm/1.61x0.59x0.23 inches. -Made of solid stainless steel for durability. No need to worry about rust, easy to clean and always new. - These trainers are fully equipped and you can practice flipping at will. - Master your skills safely with these no-risk trainer cutters. The weight is perfectly balanced, making it easy and fun for beginners to operate. - Durable construction and stylish appearance, allowing you to practice with confidence without fear. - Our well-engineered sneakers feature solid pin construction and steel washer settings to ensure these knives are built to last.