Specifications:Made of high quality tool steel, this product is durable and easy to use.After heat treatment, it is superhard and wear-resistant, which is more than twice the life of the same product.The blue rubber protective cover makes it look very beautiful and can extend its life.Item Name: Screwdriver BitsMaterial: Tool SteelQuantity: 10PcsBits Shank Type: Hexagonal ShankFeatures: Durable, with Rubber Protective Cover, Phillips Screwdriver BitsUsable Length: 50mm/1.97" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:10 x Screwdriver Bits