Esschert Design WA39 Butterfly House with Line DrawingButterfly House with Line Drawing Brand Name: Esschert On beautifully hot and sunny days in summer you will see butterflies everywhere. On cold days, however, they keep in hiding. This house is the ideal hiding place for butterflies to seek shelter in cold and wet weather conditions. To keep the butterflies happy, stuff a handful of twigs into the house. Butterflies will hang onto the twigs when using the house. Item Number: WA39 Dimensions: 11. 5 x