PetSafe YardMax Professional Grade Dog Fence Extreme Brand Installation Package - 1 Dog | 1/4 to 1/3 Acre (500' of Boundary Wire) Includes 1 New Yard Max Collar (with Both Short and Long Contacts and Training Caps) 14 Gauge 45 mil. eXtreme Brand PE Coated Solid Core Wire (500ft) - Covers up to 1/3 Acre. Additional Professional Wire Kits Available in Our Amazon Store 50 ft. Professional Grade 16 Gauge eXtreme Brand Solid Core Twisted Wire and 2 Direct Ground Burial Rated, Waterproof Splice Kits Included The Only Static Correction Fence System that is Fully Compatible with All the PetSafe Pawz Away Line of Indoor and Outdoor Pet Barriers Perfect for Pets 10 lbs. Up to 150 lbs. Receiver Collar Weighs Only 3 Ounces and is Waterproof and Rechargeable