Important information you should know before placing order :We do not accept return as it is customized and totally made by hand product.Features: Size: length (65 mm), width (34 mm), thickness (9 mm). Weight: 110 g. Silver weight: 99.1 g. Material: Silicon nitride bearings, 925 sterling silver, rivet. - great for ADHD sufferers - help to relieve stress - spinning time: about 6 minutes Note: Bearing belongs to oil free type., if using a lubricant, It will make the bearings produce resistance. Please clean the bearing with alcohol regularly in case of dust which can affect the normal work of the bearing.
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