Slug Collars (12 Pack) - Protects Vegetable Plants and Garden Flowers From Slugs, Snails, Pests, and Insects. 12 Pack of 9.5" Diameter, 5" High Slug Collar Guards. Lightweight, extremely durable and easy to use. Transparent UV protected PVC construction with green tint. Provides an angled lip protective barrier against slugs, snails, and other insects. Protects plants from intrusive slugs while allowing plant to receive sunlight and air. Completely natural and organic method of slug and snail control.