["brand new and high quality\r\nIntroduction:\r\nHi,Friends!First please allow me to thank you for riding bicycle in your daily life,both of us know that this healthy,low-carbon life style doing great help for our mother planet,hope we can keep it as one of the best way when go out.No matter you just look a trigger shifter for your ordinary,or professional bicycle,This trigger shifter can help you ride more safe.Speed is exciting,so is life!\r\n\r\n\r\nFeatures:\r\nDurable,wear and tear resistance.\r\n7 adjustable gears for 21 speed bicycle.\r\nIncluding inner gear cable,no spool.\r\nAluminum alloy and iron cable materials products.\r\nEfficiently make you ride the bicycle more comfortable.\r\nOne has 1-7 numbers for you to choose gear,other is spin button without number.\r\nYou can adjust front 3 gear + rear 7 gear,namely 21 speed or other feasible combination.\r\nCan be applied for some ordinary bicycle,mountain bike,folding bicycle,road cycling,etc.\r\n\r\n\r\nSpecification: \r\nProduct Name: SL-TX30-7R Trigger shifter 7 Gears 21 Speed For Mountain Bike Cycling\r\nMaterial:Alloy + Plastic\r\nNet Weight:±207 grams\r\nColor:Black(As shown in the picture)\r\nFit handlebar: 22.2 mm\r\nCable length: about 165 cm-205 cm\r\nModel: TX 30\r\nComponents：Trigger shifter\r\nGear:21 Speed\r\nOccasion:Bicycle,bike\r\n Quantity: 1 set\r\n\r\nWarm prompt:\r\n 1.As different measuring methods,it will occur 1-3 for cm deviation about the items,please ensure that it is okay for you before ordering;\r\n 2.Because of different monitors and lamplight,the picture may not reflect the actual color of the item,really thank you for your kind understanding!\r\n 3.This trigger shifter apply for almost standard mountain,folding bike,maybe not suitable for other special bicycles.\r\n 4.Trigger shifter only,other accessories irrelevant demo in the picture are not included.\r\n \r\nPackaging includes: A Pair of Trigger shifter x 1"]