I have an isofrane strap - love it, was about 100 usd.
i am about to buy a sinn 857 utc testaf from sinn directly (no auth dealer in my country). I can get an additional silicone strap with clasp for about 225 usd after I remove vat.
is this good value? Is it the clasp that costs so much? I wonder given the price difference to isofrane.