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2.89 Oz. Material: ABS and ball bearing
*Safe and easy to operate, so it is applicable to all people with each age,kids or adult.
*Great Toy for killing boring time,waiting bus,queuing and thinking deep whenever and wherever.
*Great for fidgety hands, ADD & ADHD sufferers helps relieve stress.
*Designer Tip: To ensure the highest quality print, please note that this product's recommended uploaded image size in pixels (W x H)：118 x 118 or higher
