iParaAiluRy Bike Bar End Plugs Handsome Universal Rubber Sponge Aluminum Handlebar Plug (1 Pair, Out Dia. 23mm/28mm, Black/Blue/Golden/Gray/Green/Red) Mini but not simple, outer dimension 23mm, handsome and clean, color: black; Constructed with rubber, sponge and aluminum ; Suit for handlebar's inside diameter &gt;=17mm(more than 17mm); Suit for Mountain bike, road bike, folding bike, let the hole of handlebar have something filled; Durable and high quality, if the bike bar end plug has quality problem, please contact us for a new one