grey Lucas slide for Fitbit Flex - BETA 3D printed grey plastic slide for Fitbit Flex Easily transform your Fitbit Flex into a beyond-chic bracelet Rock your Fitbit all the time - at the gym, the office, and even when you are out on the town. Available in sterling silver, polished brass, and 10 colors of strong and flexible plastic: white, black, grey, blue, purple, red, pink, green, yellow, and orange Dimensions - 1.4" l x 0.7" w x 0.5" h