The Klutch insulated electrical screwdriver set features sturdy Phillips and slotted screwdrivers with insulated blades that protect user from voltage up to 1000 Volts. Phosphate-coated SVCM steel blades and TPV rubber handles. Stores in zip-up case. Case Included Yes, Pieces qty. 6, Slotted Screwdrivers qty. 3, Material Type TPV rubber, Phillips Screwdrivers qty. 3. Slotted sizes 1/8in. x 4in., 7/32in. x 5in., 1/4in. x 6in., Phillips sizes #0 x 2 1/2in., #1 x 3 1/8in., #2 x 4in.