Cat window perches for two Tonkinese kittens

Setting up an enrichment station early for two Tonkinese kittens is genuinely one of the best things you can do — that breed is incredibly curious and active, and they'll absolutely use a window perch daily. Window perches are one of the top enrichment additions for indoor cats: they get natural stimulation from birds, passing movement, and sunlight, and a well-placed perch makes a real difference to indoor cat welfare. The key things I need to know are weight rating — since you have two cats who may sit together — and suction cup reliability on your specific window type. So: how heavy are the kittens now, what kind of windows do you have (smooth double-glazed, older glass, textured frames), and are you planning one perch they'll share or separate spots?

Perfect — smooth double-glazed glass is actually ideal for suction cup perches, they hold really well on that surface. At 2.5 kg each, you're light right now, but Tonkinese typically reach 4–5 kg as adults, and if both sit on the perch at once you need something rated well above 5 kg. What's the windowsill situation — do you have a ledge at all, or is it a flat frame with no sill? That affects whether you want a sill perch or a fully suction-mounted one.

Got it. In that case I'd go with the K&H Pet Products EZ Mount Window Bed. It's fully suction-mounted, rated to around 25 kg, and uses large industrial-strength suction cups that hold very reliably on smooth double-glazed glass — I wouldn't say that about every suction perch on the market, but this one genuinely earns its reputation. The sleeping surface is around 56 cm wide, which is enough for two young Tonkinese to squeeze on together, and it's a hammock-style design so it flexes slightly under weight rather than feeling rigid, which cats tend to prefer. It's also one of the easiest to reposition if you want to try different windows. Given your kittens are going to grow into curious, active adults, starting with something sturdy and comfortable means you won't be replacing it in six months.

The suction cups on the K&H EZ Mount hold well long-term on clean smooth glass — the main reason they fail on any perch is grease or dust on the window surface. Before you mount it, wipe the glass with a little rubbing alcohol or even just clean soapy water and let it dry fully, then press the cups on firmly. After the first few days, press them again as the rubber settles. Do that and they stay put for months without issue. It's also worth re-checking them every couple of weeks as a quick habit, especially while the kittens are still learning to jump on and off.

Great choice — your Tonkinese are going to love it. Put it at a window with decent outdoor movement if you can, even a garden or a bird feeder nearby makes a big difference to how much they use it. Enjoy building out the enrichment station — at five months you're setting them up really well.