Features 1,High Quality -- This Product is made of high poly plastic. It is lightweight, strong pressure resistance and durable. The edge of this product is smooth, which will not hurt the cable housing. 2,Good Protections -- It prevents wear on the accessories on the frame. This cable end caps, the best replacement for the worn cable end caps, does not fall off easily. It is more conducive to the protection of line pipes. 3,Excellent Performance -- During braking, this cable end caps prevent the steel core in the brake pipe from breaking the stop bolt under the strong tension affecting the normal braking function. 4,Widely Application -- This cable end caps is mainly used for the end of 4mm shift external cable and 5mm brake external cable. It is suitable for all kinds of bicycles, mountain bikes, road bikes, Folding bikes, etc,. Specifications Material: High poly plastic Application: For the end of 4mm shift external cable and 5mm brake external cable Size: Bicycle Brake cable end caps: Inner diameter: 5mm; Length: 17mm Bicycle Shift cable end caps: Inner diameter: 4mm; Length: 18mm Color: Black Package List: 50pcs Cable End Caps