The yarn has a thickness

They also feel nice and warm in your hands

as written on the tag)

and a tightening key for easy tightening of the closure

hp 1001310 plasthagl 5x5mm 1kg ProjectDeals_US The yarn has a thicknessPlastic Pellets are ideal to be used in teddies and other stuffed animals, if you want to add a bit of weight to them. You can add the plastic pellets to the paws or feet to make them heavier or else you can add them to the animal's behind, if you'd like it to be able to sit down. They can also be used for small bean bags and other creative hobby projects. Plastic pellets are not supposed to be washed too often and not warmer than at around 40C, but