Our simple guideline showshow you can find yourperfect size for CART Ring 6 Steps for brperfect CART Ring size You can find the video through QR code and Youtube about “How to find the perfect size” below. Choose any finger except thumb to wear a ring. Try to put a comfortale size ring which is not too tight but not spinning. Wear it at least 24 hours to test in various situations. Select the perfect size and input the size through our homepage. (www.skylabs.io) We will ship your CART once the size is confirmed. You can find the video through QR code and Youtube about “How to find the perfect size” below. Choose any finger except thumb to wear a ring. Try to put a comfortale size ring which is not too tight but not spinning. Wear it at least 24 hours to test in various situations. Select the perfect size and input the size through our homepage.(www.skylabs.io) We will ship your CART once the size is confirmed. Watch CART-I Ring Sizing Video Let Us Know Your Size After receiving your CART sizing packageand decided which size you’d like, click on“Send” here to finalize order. Select Your SizeUS 6US 7US 8US 9US 10US 11US 12US 13 Send Got Any Questions? Contact Us