Measure the width of your palm , and find the right size bracelet Size = width of your palm of your bracelet size ( Please measure the widest part of your palm ) The width of your palm 62mm - 66mm= bracelet size diameter 50mm - 52mm The width of your palm 66 mm - 70 mm diameter 52 mm bracelet size = - 54mm The width of your palm 70 mm - 74 mm = 54 mm in diameter bracelet size - 56 mm The width of your palm 74 mm - 78 mm = 56 mm in diameter bracelet size - 58 mm The width of your palm 78 mm - 82 mm = bracelet big trails 58mm - 60mm The width of your palm 82 mm - 86 mm diameter = 60mm bracelet size - 62 The width of your palm 86 mm - 90 mm = 62 mm in diameter bracelet size - 64 mm The width of your palm 90mm - 94mm= bracelet size diameter 64 mm - 66 mm The width of your palm 94 mm - 100 mm in diameter = 66 mm bracelet size - 68 mm Product Details - Shape / Type: Bracelets - Material / Gem: Agate Size: 58-66 mm, width 15MM thick bracelet 5MM - Luster: vitreous luster - Surface texture : medium grain You will receive the same quality you see in the picture 100% Satisfaction Guaranteed If you are not completely satisfied with our products , please email us and receive a full refund within seven days from the date of your return . No restocking fee will be charged .