So simple, yet a staple toy for my mechanical molucan mango and african greys.  NOthing fancy, just a bundle of thick stainless steel (grade 316) short welded chains to giggle, wiggle and tug.  I am always finding our timneh knuckles with her head under the chain... she gets a head massage that way, Hahha. My toos like to slide the toy on their cage bars... so many possibilities! Hangs from a stainless steel lock.  7" long and 2" wide.