Traditional cotter pin joints for collector's bears and adult's cuddlies.
These are fibre or hardboard. Each joint has two washers and pin. Sold in sets of 2 joints (4 x washers, 2 x pins)
You will need pliers to turn the legs - the smaller joints can be turned easily with jewellery pliers, but you may need to borrow a pair from your household toolbox for the larger 30 or 40mm joints