Hi
Check out the Stress Free but they are not cheap. Send them an email and they will send all specs via email. We are seriously considering it -- well hubby is anyway. When it comes to pulling up the anchor he is a pussy and instead of the usual moans and groans I do it myself. New boat and he has pulled anchor in NIL.
Alternately the anchor ball works fine and the ring is far better than the clip.
Mrs Ronnie H