This item is helpful for creating an environment where your beloved bird can live in peace. When you put it over the cage at bedtime, your bird will be able to rest comfortably. The front cover opens and closes easily with Velcro. I think I used it for a few weeks. It's a beautiful item. I've hand-washed it before listing it. ◆Size Approx: Front 39.6 cm x Depth 29.7 cm x Height 41.5 cm Your precious bird can sleep soundly! HOEI Cage Sleep Cover! Sleep Cover: Type D Compatible Cages: HOEI 40 Hand-rearing series, Heartful House Hand-rearing, etc. ●Specifically for HOEI cage Heartful Carry birdcage It says "Sleep Cover...", but it can be used without any problems with other company's cages if the size is almost the same. ●The lining is black to block out light. Easy to open and close with Velcro on the front. ●If you put the cover on, your precious bird can sleep soundly. ●Size Approx: 39.6 cm x 29.7 cm x 41.5 cm Material: 100% Polyester ●Made in Japan ●Machine washable ★Although it is a beautiful item, please refrain from purchasing if you are sensitive to details.