NECKLACES - Before you buy, try using a rope or shoestring around your neck, find the perfect length, then measure it. Model has a 15" neck, is 5' 11" tall and weighs 180lbs. Chains with pendants can weigh down the chain a bit more making it appear longer. 

 

BRACELETS - The best way to measure your wrist is with a fabric tape measure, rope or a thin slip of paper. The measurement should be taken at the smallest part of the wrist between the hand and wrist bone. You will need to wrap the string around your wrist and measure it. After you measure it, cut it to the length you measured. Wrap it around again and make sure that it is a perfect (not loose) fit. If it is loose and overlaps, cut again and double check, then that is your final measurement. Thickness of bracelets can impact the comfort - always size up .5" to 1" depending on your comfort level.