The Tether Arm Kit 4.5" is available in Israel through Pertech. You can contact Pertech directly via phone at +972 9 7711418 or email info@pertech.co.il for purchase inquiries.
The Tether Arm Kit 4.5" is described as a "Standard Tether Arm Kit" with a length of 4.5 inches. Its item number is RPGMK002.