2 X The Buzz Strip Blinds for Doors (Traditional Walk-Through Plastic Strips for Insect Control), 90 x 200 cm - Multi-Coloured

Nothing

Thin, slightest wind and they're all over the place, I've put another plastic bead one up and that's helped a bit.You get what you pat for, don't expect heavy duty. Might be better for internal doors

Easy to cut to size, to fit, unfortunately the colour strips of plastic are too light and leave big gaps letting the flies in

Streamers fall out very easily.

I have used these blinds before and have no complaints.