Before placing an order, please check the size of this bird perch is suitable for your bird as it has been designed for medium to large birds, the suction cups are fully hidden when the perch is stuck to a surface so there is no way your bird can nibble at them or try to remove it from the window. The size of the perch is roughly 31cm tall, with the widest width at the top being 21cm wide, the droppings tray is 23cm x 20cm with a gap of around 20cm between the tray and the wooden perch. The perch part where the bird sits is made from 100 percent natural untreated beech wood with a diameter of 3cm and length of 25cm. Please view the photos which are true to size and show this clearly. Simply use the 5 suction cups provided to stick to a level, clean, smooth surface such as glass. These suction cups stick when you apply pressure to them whilst turning the nut clockwise keeping pressure applied at the same time, this tightens and pulls the suction cup tight to the window making a solid secure fix, or you can use the holes to permanently fix the perch to the area of your choice. Please note suction cups don’t stick to all surfaces so check the surface is suitable before you place an order. This perch is Ideal for attaching to windows giving your bird the best view whilst catching any mess with the droppings tray and 2 supplied paper card covers. The perch is made from a strong, nontoxic white plastic which is safe for all animals. The best feature of this perch is the droppings Tray and separate removable paper card covers which are great at catching any mess such as feathers, poo, dust etc. The card covers are made from natural, untreated thick paper card, they are so easy to remove, clean, dispose of or replace. It will be delivered in 3 parts which easily fit together without the need for any tools. If you do struggle, please view the photos on this advert which may help, read the instructions provided or contact me directly and I will do my best to help.