PetSafe, Extra Collar for Stubborn Dogs or Large Dogs for Fencing Anti-Runaway with Wire, Adjustable, Waterproof, 5 Levels of Stimulation, for Dogs of +4 kg, Weighs 142 GR.

CREATE A SECURE PLAY AREA: The PetSafe Underground Fence Receiver Collar for Stubborn Dogs allows you to add another dog to your underground fence system so all your pets can safely enjoy outdoor activities
Secure Static Collar: This waterproof and adjustable collar offers a tone and vibration mode, as well as 4 levels of secure static correction that can be adapted to your dog's needs and temperament
ADJUSTABLE NECK COLLAR - The waterproof 9 volt battery operated receiver collar is designed to fit dogs over 6 months weighing at least 8 pounds and offers adjustable neck sizes from 6 to 28 inches
Global Mission, Local Care: With roots in the US and global reach, PetSafe offers veterinarian and canine educator-recommended solutions as well as exceptional customer support to create playspaces for animals
27 Years of Joy: Since 1998, PetSafe has been committed to creating innovative products to ensure healthy and happy animals, bringing happiness to families with animals and enriching the lives of pets and their owners