Screen-free gift / game for 7 and 4 yo to play together

[Spiralisedmum]

Looking for a joint pressie for bright 7 yo and nearly 4 yo sisters. Nothing too physical or complex as 4 yo is weak due to a genetic condition. Want joint to encourage collaboration. Last year we bought table football which is great and year before magnetic tiles which they both still enjoy

My two are same age they love those Orchard board games - you know mucky trucks, monster match kind of thing.

There are loads of brilliant games out there. Snakes and ladders, funny bunny, card games and our current favourite is one which uses kinetic sand- sink n sand I think it's called.

We love sinking sand too. Great game.
Mine are 5 and 9 and love playing with plus plus bricks together, keeps them occupied for ages.

If it doesn't have to be a game, do they have things like Playmobil or Sylvanian families and could you add to their play sets? Then they can play with those together.
Does the younger one have weak grip? I was going to suggest a marble run but that can require a bit of dexterity and power to get the pieces together and take them apart again. When they are a bit older, Gravitrax is brilliant.