Features: Durable Material: Made of acrylic, stronger and more durable than plastic, no deformation, bending, can withstand different wild birds feeding on the window feeders. Easy to Install: Clamp-on design is very convenient to use, suitable for clipping on flat objects less than 2.5mm thick, an accessory for window bird feeders. Bird Feeder Accessories: This clip-on bird play stand will help you provide more perches to attract the birds to play. You can have better experience of watching birds. Multipurpose Use: Besides being used as a bird feeders accessory, it can also be used as a household hook to hang things. Nice Service: Please contact us when you have any questions about this product, we will try to solve the problem for you as soon as possible. Specifications: Material: Acrylic Size: 6.8*2.5cm 2 Pcs * Perch Stand