Perfect giftThis is a great little accessory for your favorite guinea pig cage in your life! The frame is made of wood and attached together by stainless steel screws. The mat or bed area is made of a nice cotton weave fabric and has a little padding to it Safe chewable100% Pure natural oak is untreated,It is a high-quality wooden material for making furniture.Wood frame very strong and wear-resistant,If there are animals or rabbit that like to chew someting, that is safe for them to nibble on cage, and it can last for more than a few months Stable designNice solid wood with a polka dot padded hammock , Unlike a human hammock, this is not going to spill your guinea pig on the ground if he leans wrong. It has a flat bottom of the frame and the frame holds the bed cloth from tipping.once assembled, it is nice and stable Easy to assembleThe hammock bed toys was very obvious how it assembles ,Easy installation without tools(Contains installation instructions).We recommendation is not tighten things too much. This way it will be easier to get the bolts aligned to where they're supposed to go. Once everything is in place, then tighten everything up SizeAbout 9.84"x8.07"x3.94"( Length x Width x High, It is the material itself),this rabbit accessories can hold no more than 3lb small pet, fit for bunnies,guinea pig,ferret,hedgehog,hamster,bearded dragon and other similar sized small animal