Give your plants a helping hand by keeping them out of the cold with our 38cm Propagator Cover. One of the biggest reasons for seeds failing to germinate is because of the environment being too cold or too warm. This robust dome-shaped plastic propagator lid with handle will help to regulate temperature for a better success rate. Ideal for use with Wilko seed trays. Approximate size L38 x W24 x H12cm Wilko Propagator Cover 38cm Plastic - Product Details: Home, Garden & Outdoor, Plants, Seeds & Bulbs, Seed Trays & Propagators, Wilko Propagator Cover 38cm