This Cat & Dog Repellent Crystal Gel from Defenders helps to prevent cats and dogs from digging, scratching and fouling on patio and garden areas. A repeat treatment every 48 hours is recommended. This repellent crystal gel treats up to 40 square meters in patio and garden areas. It is a ready-to-use treatment containing aromatic plant oils to treat vulnerable areas such as patios, tilled soil and loose gravel. It works as an aversive product to help reduce scratching and fouling. The gel is garlic-free and scented with orange oil to deter animals. Size: 450ml Dimensions: H24 x W 9.6 x D5.7cm.