Medium Garden Cloche Plant Cover (5 Pack) - Durable Frost Covers and Plant Protection. Great Frost Protection for Garden Plants These 10" Diameter, 7.5" High Cloches are lightweight, extremely durable and includes a fully adjustable air vent. Transparent UV protected PVC construction - Elegant bell shape promotes even air circulation. Three ground pegs included. Provides a protective barrier against frost, snow, hail, wind, insects, hungry animals. Protects while allowing plant to receive sunlight and greenhouse-like warmth. Helps plants retain moisture and encourages early growth.