Cat Approved Window Perch:Dimensions: 22.4"L x 15.6"W x 8.5"H. Without having to drill anything or using suction cups. Super easy to move from window to window and it doesn't hurt the wall or window frame. Check for Window Fit :Before placing an order,Please make sure the window Slots Depth over 0.7 inch,Window sills shorter than 6 inch,3 inch or less from sill edge.Different Usage Scenarious :By adjusting the distance between the hook and the supporting leg, it can be easily installed on the window sill, cabinet, drawer. It can easily be removed to close the curtains and just as easy to put back up.No Drilling, Quick Installation:Following our instruction and finish it within 10 minutes. The hook has a 6 inch adjustable distance to satify different wall thicknesses. Felt gaskets where under the supporting leg could protect the wall.Stable & Super Load Bearing:Compared to suction-mounted window shelves, our cat bed structure design is more stable. You don't need to worry suction cups drop problem. It can hold up to 40lbs, suitable for multiple kitties or a large cat.Favorite Spot for Cats :Provide them a comfortable sunbathing spot. Cat enjoys sitting at a high vantage point to look out of the window nice view. The window hammock will be your cats favorite spot to hang out