WIRING STAPLE GUN SKU: 357669 Arrow For stapling all types of wiring from 1/4 (6mm) to 5/16 (8mm) in diameter. Ideal for installing wiring for telephones antennas intercoms and alarm systems. Can be used on plastic cable hollow tubing radiant heat cable and virtually any application of wire. Grooved guide positions wire. Jam-resistant mechanism. Short span easy compression handle. All steel construction. Chrome finish. For low voltage wire up to 5/16 diameter. Holds 2 strips of 15 insulated staples Model No. 591188 (SKU 357677). 300 staples per pack. Item Attributes Type: Heavy-Duty Staple Size: 1/4 In. to 5/16 In. Brad Size: Prop 65 Warning This product can expose you to chemicals including Di(2-ethylhexyl)phthalate which is known to the State of California to cause cancer and birth defects or other reproductive harms. For more information go to www.P65Warnings .ca.gov.